From 11b8dc0d0b75e340383fd3de848104731169a142 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Thu, 30 Nov 2017 15:39:43 +0000
Subject: [PATCH 1/5] Add span to kafka streams

---
 .../clientapi/consumers/roomserver.go         |  5 +-
 .../dendrite/roomserver/api/output.go         | 41 +++++++++++++++
 .../dendrite/roomserver/input/events.go       |  2 +-
 .../roomserver/input/latest_events.go         | 11 +++-
 .../dendrite/roomserver/input/membership.go   | 50 ++++++++++++++-----
 5 files changed, 93 insertions(+), 16 deletions(-)

diff --git a/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go
index 0ee7c6bf..ad8acacf 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go
@@ -77,6 +77,9 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
+	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	defer span.Finish()
+
 	if output.Type != api.OutputTypeNewRoomEvent {
 		log.WithField("type", output.Type).Debug(
 			"roomserver output log: ignoring unknown output type",
@@ -96,7 +99,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return err
 	}
 
-	return s.db.UpdateMemberships(context.TODO(), events, output.NewRoomEvent.RemovesStateEventIDs)
+	return s.db.UpdateMemberships(ctx, events, output.NewRoomEvent.RemovesStateEventIDs)
 }
 
 // lookupStateEvents looks up the state events that are added by a new event.
diff --git a/src/github.com/matrix-org/dendrite/roomserver/api/output.go b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
index 6a5c924c..522f1b61 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/api/output.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
@@ -15,7 +15,11 @@
 package api
 
 import (
+	"context"
+
 	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go/ext"
 )
 
 // An OutputType is a type of roomserver output.
@@ -41,6 +45,43 @@ type OutputEvent struct {
 	NewInviteEvent *OutputNewInviteEvent `json:"new_invite_event,omitempty"`
 	// The content of event with type OutputTypeRetireInviteEvent
 	RetireInviteEvent *OutputRetireInviteEvent `json:"retire_invite_event,omitempty"`
+	// Serialized span context
+	OpentracingCarrier opentracing.TextMapCarrier `json:"opentracing_carrier"`
+}
+
+// AddSpanFromContext fills out the OpentracingCarrier field from the given context
+func (o *OutputEvent) AddSpanFromContext(ctx context.Context) error {
+	span := opentracing.SpanFromContext(ctx)
+	ext.SpanKindProducer.Set(span)
+	var carrier opentracing.TextMapCarrier
+	tracer := opentracing.GlobalTracer()
+
+	err := tracer.Inject(span.Context(), opentracing.TextMap, carrier)
+	if err != nil {
+		return err
+	}
+
+	o.OpentracingCarrier = carrier
+
+	return nil
+}
+
+func (o *OutputEvent) StartSpanAndReplaceContext(
+	ctx context.Context,
+) (context.Context, opentracing.Span) {
+	tracer := opentracing.GlobalTracer()
+	producerContext, err := tracer.Extract(opentracing.TextMap, o.OpentracingCarrier)
+
+	var span opentracing.Span
+	if err == nil {
+		// Default to a span without reference to producer context.
+		span = tracer.StartSpan("room_event_consumer")
+	} else {
+		// Set the producer context.
+		span = tracer.StartSpan("room_event_consumer", opentracing.FollowsFrom(producerContext))
+	}
+
+	return opentracing.ContextWithSpan(ctx, span), span
 }
 
 // An OutputNewRoomEvent is written when the roomserver receives a new event.
diff --git a/src/github.com/matrix-org/dendrite/roomserver/input/events.go b/src/github.com/matrix-org/dendrite/roomserver/input/events.go
index 9032219e..31fd5f2f 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/input/events.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/input/events.go
@@ -183,7 +183,7 @@ func processInviteEvent(
 		return nil
 	}
 
-	outputUpdates, err := updateToInviteMembership(updater, &input.Event, nil)
+	outputUpdates, err := updateToInviteMembership(ctx, updater, &input.Event, nil)
 	if err != nil {
 		return err
 	}
diff --git a/src/github.com/matrix-org/dendrite/roomserver/input/latest_events.go b/src/github.com/matrix-org/dendrite/roomserver/input/latest_events.go
index 5767daab..9fb945c4 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/input/latest_events.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/input/latest_events.go
@@ -275,10 +275,17 @@ func (u *latestEventsUpdater) makeOutputNewRoomEvent() (*api.OutputEvent, error)
 	}
 	ore.SendAsServer = u.sendAsServer
 
-	return &api.OutputEvent{
+	oe := api.OutputEvent{
 		Type:         api.OutputTypeNewRoomEvent,
 		NewRoomEvent: &ore,
-	}, nil
+	}
+
+	err = oe.AddSpanFromContext(u.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return &oe, nil
 }
 
 type eventNIDSorter []types.EventNID
diff --git a/src/github.com/matrix-org/dendrite/roomserver/input/membership.go b/src/github.com/matrix-org/dendrite/roomserver/input/membership.go
index 4c42cadd..5e1d0f93 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/input/membership.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/input/membership.go
@@ -77,7 +77,7 @@ func updateMemberships(
 				ae = &ev.Event
 			}
 		}
-		if updates, err = updateMembership(updater, targetUserNID, re, ae, updates); err != nil {
+		if updates, err = updateMembership(ctx, updater, targetUserNID, re, ae, updates); err != nil {
 			return nil, err
 		}
 	}
@@ -85,6 +85,7 @@ func updateMemberships(
 }
 
 func updateMembership(
+	ctx context.Context,
 	updater types.RoomRecentEventsUpdater, targetUserNID types.EventStateKeyNID,
 	remove, add *gomatrixserverlib.Event,
 	updates []api.OutputEvent,
@@ -119,11 +120,11 @@ func updateMembership(
 
 	switch new {
 	case invite:
-		return updateToInviteMembership(mu, add, updates)
+		return updateToInviteMembership(ctx, mu, add, updates)
 	case join:
-		return updateToJoinMembership(mu, add, updates)
+		return updateToJoinMembership(ctx, mu, add, updates)
 	case leave, ban:
-		return updateToLeaveMembership(mu, add, new, updates)
+		return updateToLeaveMembership(ctx, mu, add, new, updates)
 	default:
 		panic(fmt.Errorf(
 			"input: membership %q is not one of the allowed values", new,
@@ -132,7 +133,7 @@ func updateMembership(
 }
 
 func updateToInviteMembership(
-	mu types.MembershipUpdater, add *gomatrixserverlib.Event, updates []api.OutputEvent,
+	ctx context.Context, mu types.MembershipUpdater, add *gomatrixserverlib.Event, updates []api.OutputEvent,
 ) ([]api.OutputEvent, error) {
 	// We may have already sent the invite to the user, either because we are
 	// reprocessing this event, or because the we received this invite from a
@@ -151,16 +152,24 @@ func updateToInviteMembership(
 		onie := api.OutputNewInviteEvent{
 			Event: *add,
 		}
-		updates = append(updates, api.OutputEvent{
+
+		oe := api.OutputEvent{
 			Type:           api.OutputTypeNewInviteEvent,
 			NewInviteEvent: &onie,
-		})
+		}
+
+		err = oe.AddSpanFromContext(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		updates = append(updates, oe)
 	}
 	return updates, nil
 }
 
 func updateToJoinMembership(
-	mu types.MembershipUpdater, add *gomatrixserverlib.Event, updates []api.OutputEvent,
+	ctx context.Context, mu types.MembershipUpdater, add *gomatrixserverlib.Event, updates []api.OutputEvent,
 ) ([]api.OutputEvent, error) {
 	// If the user is already marked as being joined, we call SetToJoin to update
 	// the event ID then we can return immediately. Retired is ignored as there
@@ -187,15 +196,24 @@ func updateToJoinMembership(
 			RetiredByEventID: add.EventID(),
 			TargetUserID:     *add.StateKey(),
 		}
-		updates = append(updates, api.OutputEvent{
+
+		oe := api.OutputEvent{
 			Type:              api.OutputTypeRetireInviteEvent,
 			RetireInviteEvent: &orie,
-		})
+		}
+
+		err = oe.AddSpanFromContext(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		updates = append(updates, oe)
 	}
 	return updates, nil
 }
 
 func updateToLeaveMembership(
+	ctx context.Context,
 	mu types.MembershipUpdater, add *gomatrixserverlib.Event,
 	newMembership string, updates []api.OutputEvent,
 ) ([]api.OutputEvent, error) {
@@ -219,10 +237,18 @@ func updateToLeaveMembership(
 			RetiredByEventID: add.EventID(),
 			TargetUserID:     *add.StateKey(),
 		}
-		updates = append(updates, api.OutputEvent{
+
+		oe := api.OutputEvent{
 			Type:              api.OutputTypeRetireInviteEvent,
 			RetireInviteEvent: &orie,
-		})
+		}
+
+		err = oe.AddSpanFromContext(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		updates = append(updates, oe)
 	}
 	return updates, nil
 }

From d843b515548915c1664435cf2a9cd0eb5217e757 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Thu, 30 Nov 2017 16:19:22 +0000
Subject: [PATCH 2/5] Create opentracing spans on kafka consumers

---
 .../federationsender/consumers/roomserver.go  | 24 ++++++++++++-------
 .../publicroomsapi/consumers/roomserver.go    |  9 ++++---
 .../dendrite/roomserver/api/output.go         |  8 +++----
 .../dendrite/syncapi/consumers/roomserver.go  |  9 ++++---
 4 files changed, 31 insertions(+), 19 deletions(-)

diff --git a/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go
index 45e48f16..5e856ebb 100644
--- a/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go
@@ -85,6 +85,10 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		)
 		return nil
 	}
+
+	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	defer span.Finish()
+
 	ev := &output.NewRoomEvent.Event
 	log.WithFields(log.Fields{
 		"event_id":       ev.EventID(),
@@ -92,7 +96,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		"send_as_server": output.NewRoomEvent.SendAsServer,
 	}).Info("received event from roomserver")
 
-	if err := s.processMessage(*output.NewRoomEvent); err != nil {
+	if err := s.processMessage(ctx, *output.NewRoomEvent); err != nil {
 		// panic rather than continue with an inconsistent database
 		log.WithFields(log.Fields{
 			"event":      string(ev.JSON()),
@@ -108,8 +112,10 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 
 // processMessage updates the list of currently joined hosts in the room
 // and then sends the event to the hosts that were joined before the event.
-func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) error {
-	addsStateEvents, err := s.lookupStateEvents(ore.AddsStateEventIDs, ore.Event)
+func (s *OutputRoomEventConsumer) processMessage(
+	ctx context.Context, ore api.OutputNewRoomEvent,
+) error {
+	addsStateEvents, err := s.lookupStateEvents(ctx, ore.AddsStateEventIDs, ore.Event)
 	if err != nil {
 		return err
 	}
@@ -123,7 +129,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) err
 	// TODO(#290): handle EventIDMismatchError and recover the current state by
 	// talking to the roomserver
 	oldJoinedHosts, err := s.db.UpdateRoom(
-		context.TODO(),
+		ctx,
 		ore.Event.RoomID(),
 		ore.LastSentEventID,
 		ore.Event.EventID(),
@@ -148,7 +154,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) err
 	}
 
 	// Work out which hosts were joined at the event itself.
-	joinedHostsAtEvent, err := s.joinedHostsAtEvent(ore, oldJoinedHosts)
+	joinedHostsAtEvent, err := s.joinedHostsAtEvent(ctx, ore, oldJoinedHosts)
 	if err != nil {
 		return err
 	}
@@ -169,7 +175,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent) err
 // events from the room server.
 // Returns an error if there was a problem talking to the room server.
 func (s *OutputRoomEventConsumer) joinedHostsAtEvent(
-	ore api.OutputNewRoomEvent, oldJoinedHosts []types.JoinedHost,
+	ctx context.Context, ore api.OutputNewRoomEvent, oldJoinedHosts []types.JoinedHost,
 ) ([]gomatrixserverlib.ServerName, error) {
 	// Combine the delta into a single delta so that the adds and removes can
 	// cancel each other out. This should reduce the number of times we need
@@ -178,7 +184,7 @@ func (s *OutputRoomEventConsumer) joinedHostsAtEvent(
 		ore.AddsStateEventIDs, ore.RemovesStateEventIDs,
 		ore.StateBeforeAddsEventIDs, ore.StateBeforeRemovesEventIDs,
 	)
-	combinedAddsEvents, err := s.lookupStateEvents(combinedAdds, ore.Event)
+	combinedAddsEvents, err := s.lookupStateEvents(ctx, combinedAdds, ore.Event)
 	if err != nil {
 		return nil, err
 	}
@@ -288,7 +294,7 @@ func combineDeltas(adds1, removes1, adds2, removes2 []string) (adds, removes []s
 
 // lookupStateEvents looks up the state events that are added by a new event.
 func (s *OutputRoomEventConsumer) lookupStateEvents(
-	addsStateEventIDs []string, event gomatrixserverlib.Event,
+	ctx context.Context, addsStateEventIDs []string, event gomatrixserverlib.Event,
 ) ([]gomatrixserverlib.Event, error) {
 	// Fast path if there aren't any new state events.
 	if len(addsStateEventIDs) == 0 {
@@ -321,7 +327,7 @@ func (s *OutputRoomEventConsumer) lookupStateEvents(
 	// from the roomserver using the query API.
 	eventReq := api.QueryEventsByIDRequest{EventIDs: missing}
 	var eventResp api.QueryEventsByIDResponse
-	if err := s.query.QueryEventsByID(context.TODO(), &eventReq, &eventResp); err != nil {
+	if err := s.query.QueryEventsByID(ctx, &eventReq, &eventResp); err != nil {
 		return nil, err
 	}
 
diff --git a/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go
index b7d42b11..3a83ba67 100644
--- a/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go
@@ -77,6 +77,9 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
+	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	defer span.Finish()
+
 	ev := output.NewRoomEvent.Event
 	log.WithFields(log.Fields{
 		"event_id": ev.EventID(),
@@ -86,17 +89,17 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 
 	addQueryReq := api.QueryEventsByIDRequest{EventIDs: output.NewRoomEvent.AddsStateEventIDs}
 	var addQueryRes api.QueryEventsByIDResponse
-	if err := s.query.QueryEventsByID(context.TODO(), &addQueryReq, &addQueryRes); err != nil {
+	if err := s.query.QueryEventsByID(ctx, &addQueryReq, &addQueryRes); err != nil {
 		log.Warn(err)
 		return err
 	}
 
 	remQueryReq := api.QueryEventsByIDRequest{EventIDs: output.NewRoomEvent.RemovesStateEventIDs}
 	var remQueryRes api.QueryEventsByIDResponse
-	if err := s.query.QueryEventsByID(context.TODO(), &remQueryReq, &remQueryRes); err != nil {
+	if err := s.query.QueryEventsByID(ctx, &remQueryReq, &remQueryRes); err != nil {
 		log.Warn(err)
 		return err
 	}
 
-	return s.db.UpdateRoomFromEvents(context.TODO(), addQueryRes.Events, remQueryRes.Events)
+	return s.db.UpdateRoomFromEvents(ctx, addQueryRes.Events, remQueryRes.Events)
 }
diff --git a/src/github.com/matrix-org/dendrite/roomserver/api/output.go b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
index 522f1b61..3c928202 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/api/output.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
@@ -53,7 +53,7 @@ type OutputEvent struct {
 func (o *OutputEvent) AddSpanFromContext(ctx context.Context) error {
 	span := opentracing.SpanFromContext(ctx)
 	ext.SpanKindProducer.Set(span)
-	var carrier opentracing.TextMapCarrier
+	carrier := make(opentracing.TextMapCarrier)
 	tracer := opentracing.GlobalTracer()
 
 	err := tracer.Inject(span.Context(), opentracing.TextMap, carrier)
@@ -73,12 +73,12 @@ func (o *OutputEvent) StartSpanAndReplaceContext(
 	producerContext, err := tracer.Extract(opentracing.TextMap, o.OpentracingCarrier)
 
 	var span opentracing.Span
-	if err == nil {
+	if err != nil {
 		// Default to a span without reference to producer context.
-		span = tracer.StartSpan("room_event_consumer")
+		span = tracer.StartSpan("output_event_consumer")
 	} else {
 		// Set the producer context.
-		span = tracer.StartSpan("room_event_consumer", opentracing.FollowsFrom(producerContext))
+		span = tracer.StartSpan("output_event_consumer", opentracing.FollowsFrom(producerContext))
 	}
 
 	return opentracing.ContextWithSpan(ctx, span), span
diff --git a/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go
index 677eeb42..a02c4be4 100644
--- a/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go
@@ -80,13 +80,16 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
+	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	defer span.Finish()
+
 	switch output.Type {
 	case api.OutputTypeNewRoomEvent:
-		return s.onNewRoomEvent(context.TODO(), *output.NewRoomEvent)
+		return s.onNewRoomEvent(ctx, *output.NewRoomEvent)
 	case api.OutputTypeNewInviteEvent:
-		return s.onNewInviteEvent(context.TODO(), *output.NewInviteEvent)
+		return s.onNewInviteEvent(ctx, *output.NewInviteEvent)
 	case api.OutputTypeRetireInviteEvent:
-		return s.onRetireInviteEvent(context.TODO(), *output.RetireInviteEvent)
+		return s.onRetireInviteEvent(ctx, *output.RetireInviteEvent)
 	default:
 		log.WithField("type", output.Type).Debug(
 			"roomserver output log: ignoring unknown output type",

From dcf04b251c39d8de098e599678ec55d0878903ee Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Thu, 30 Nov 2017 16:39:19 +0000
Subject: [PATCH 3/5] Add comment

---
 src/github.com/matrix-org/dendrite/roomserver/api/output.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/github.com/matrix-org/dendrite/roomserver/api/output.go b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
index 3c928202..4f35dbbc 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/api/output.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
@@ -66,6 +66,8 @@ func (o *OutputEvent) AddSpanFromContext(ctx context.Context) error {
 	return nil
 }
 
+// StartSpanAndReplaceContext produces a context and opentracing span from the
+// info embedded in OutputEvent
 func (o *OutputEvent) StartSpanAndReplaceContext(
 	ctx context.Context,
 ) (context.Context, opentracing.Span) {

From 7d67791d176f1177e13665683ba05c993337de6e Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Fri, 1 Dec 2017 11:37:06 +0000
Subject: [PATCH 4/5] Add CORS headers to all responses including errors

While util.MakeJSONAPI handles adding CORS headers and OPTIONS requests,
that only gets hit for known APIs. This means that clients get CORS
errors for unkown APIs, rather than seeing the 404, which causes them to
retry.
---
 .../cmd/dendrite-client-api-server/main.go    |  2 +-
 .../cmd/dendrite-media-api-server/main.go     |  2 +-
 .../cmd/dendrite-monolith-server/main.go      |  2 +-
 .../dendrite-public-rooms-api-server/main.go  |  2 +-
 .../cmd/dendrite-sync-api-server/main.go      |  2 +-
 .../matrix-org/dendrite/common/httpapi.go     | 20 +++++++++++++++++--
 6 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go
index 929fd3b5..8794107f 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go
@@ -121,7 +121,7 @@ func main() {
 		queryAPI, aliasAPI, accountDB, deviceDB, federation, keyRing,
 		userUpdateProducer, syncProducer,
 	)
-	common.SetupHTTPAPI(http.DefaultServeMux, api)
+	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.ClientAPI), nil))
 }
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go
index 5092f427..bc16dee7 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go
@@ -70,7 +70,7 @@ func main() {
 
 	api := mux.NewRouter()
 	routing.Setup(api, cfg, db, deviceDB, client)
-	common.SetupHTTPAPI(http.DefaultServeMux, api)
+	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.MediaAPI), nil))
 }
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go
index 05fc4252..9ecfd60a 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go
@@ -103,7 +103,7 @@ func main() {
 	// Expose the matrix APIs directly rather than putting them under a /api path.
 	go func() {
 		log.Info("Listening on ", *httpBindAddr)
-		log.Fatal(http.ListenAndServe(*httpBindAddr, m.api))
+		log.Fatal(http.ListenAndServe(*httpBindAddr, common.WrapHandlerInCORS(m.api)))
 	}()
 	// Handle HTTPS if certificate and key are provided
 	go func() {
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
index 448ede7d..24aae0da 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
@@ -85,7 +85,7 @@ func main() {
 
 	api := mux.NewRouter()
 	routing.Setup(api, deviceDB, db)
-	common.SetupHTTPAPI(http.DefaultServeMux, api)
+	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.PublicRoomsAPI), nil))
 }
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go
index e7f83a60..16ae228b 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go
@@ -105,7 +105,7 @@ func main() {
 
 	api := mux.NewRouter()
 	routing.Setup(api, sync.NewRequestPool(db, n, adb), db, deviceDB)
-	common.SetupHTTPAPI(http.DefaultServeMux, api)
+	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.SyncAPI), nil))
 }
diff --git a/src/github.com/matrix-org/dendrite/common/httpapi.go b/src/github.com/matrix-org/dendrite/common/httpapi.go
index 76182bf0..5a6fcef0 100644
--- a/src/github.com/matrix-org/dendrite/common/httpapi.go
+++ b/src/github.com/matrix-org/dendrite/common/httpapi.go
@@ -4,7 +4,6 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/gorilla/mux"
 	"github.com/matrix-org/dendrite/clientapi/auth"
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/gomatrixserverlib"
@@ -87,8 +86,25 @@ func MakeFedAPI(
 
 // SetupHTTPAPI registers an HTTP API mux under /api and sets up a metrics
 // listener.
-func SetupHTTPAPI(servMux *http.ServeMux, apiMux *mux.Router) {
+func SetupHTTPAPI(servMux *http.ServeMux, apiMux http.Handler) {
 	// This is deprecated.
 	servMux.Handle("/metrics", prometheus.Handler()) // nolint: megacheck, staticcheck
 	servMux.Handle("/api/", http.StripPrefix("/api", apiMux))
 }
+
+// WrapHandlerInCORS adds CORS headers to all responses, including all error
+// responses.
+// Handles OPTIONS requests directly.
+func WrapHandlerInCORS(h http.Handler) http.HandlerFunc {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
+		w.Header().Set("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization")
+
+		if r.Method == "OPTIONS" && r.Header.Get("Access-Control-Request-Method") != "" {
+			w.WriteHeader(http.StatusOK)
+		} else {
+			h.ServeHTTP(w, r)
+		}
+	})
+}

From 0fc64328562e118aae106bb2ec06801a8ba0fe75 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Mon, 4 Dec 2017 09:57:03 +0000
Subject: [PATCH 5/5] All the opentracing stuff

---
 .../auth/storage/accounts/storage.go          |   5 +-
 .../clientapi/auth/storage/devices/storage.go |   4 +-
 .../clientapi/consumers/roomserver.go         |   6 +-
 .../dendrite/clientapi/routing/routing.go     |  91 +++---
 .../dendrite/cmd/create-account/main.go       |   5 +-
 .../cmd/dendrite-client-api-server/main.go    |  17 +-
 .../dendrite-federation-api-server/main.go    |  13 +-
 .../dendrite-federation-sender-server/main.go |  11 +-
 .../cmd/dendrite-media-api-server/main.go     |  13 +-
 .../cmd/dendrite-monolith-server/main.go      |  88 ++++--
 .../dendrite-public-rooms-api-server/main.go  |  16 +-
 .../dendrite/cmd/dendrite-room-server/main.go |  16 +-
 .../cmd/dendrite-sync-api-server/main.go      |  18 +-
 .../dendrite/common/config/config.go          |  25 --
 .../matrix-org/dendrite/common/httpapi.go     |  14 +-
 .../matrix-org/dendrite/common/keydb/keydb.go |   6 +-
 .../matrix-org/dendrite/common/sql.go         |  22 ++
 .../matrix-org/dendrite/common/tracers.go     | 103 +++++++
 .../dendrite/federationapi/routing/routing.go |  25 +-
 .../federationsender/consumers/roomserver.go  |   6 +-
 .../federationsender/storage/storage.go       |   4 +-
 .../dendrite/mediaapi/routing/routing.go      |   5 +
 .../dendrite/mediaapi/storage/storage.go      |   7 +-
 .../publicroomsapi/consumers/roomserver.go    |   6 +-
 .../publicroomsapi/routing/routing.go         |  14 +-
 .../publicroomsapi/storage/storage.go         |   4 +-
 .../dendrite/roomserver/alias/alias.go        |   9 +-
 .../dendrite/roomserver/api/output.go         |   3 +-
 .../dendrite/roomserver/input/input.go        |  31 +-
 .../dendrite/roomserver/query/query.go        | 141 ++++++++-
 .../dendrite/roomserver/storage/storage.go    |   7 +-
 .../dendrite/syncapi/consumers/roomserver.go  |   7 +-
 .../dendrite/syncapi/routing/routing.go       |  14 +-
 .../dendrite/syncapi/storage/syncserver.go    |   6 +-
 vendor/manifest                               |   6 +
 .../github.com/gchaincl/sqlhooks/CHANGELOG.md |  41 +++
 .../src/github.com/gchaincl/sqlhooks/LICENSE  |  21 ++
 .../github.com/gchaincl/sqlhooks/README.md    |  82 ++++++
 .../gchaincl/sqlhooks/benchmark_test.go       |  76 +++++
 .../src/github.com/gchaincl/sqlhooks/doc.go   |  52 ++++
 .../sqlhooks/hooks/loghooks/example_test.go   |  17 ++
 .../sqlhooks/hooks/loghooks/examples/main.go  |  31 ++
 .../sqlhooks/hooks/loghooks/loghooks.go       |  30 ++
 .../sqlhooks/hooks/othooks/examples/main.go   |  39 +++
 .../sqlhooks/hooks/othooks/othooks.go         |  35 +++
 .../sqlhooks/hooks/othooks/othooks_test.go    |  74 +++++
 .../github.com/gchaincl/sqlhooks/sqlhooks.go  | 277 ++++++++++++++++++
 .../gchaincl/sqlhooks/sqlhooks_mysql_test.go  |  56 ++++
 .../sqlhooks/sqlhooks_postgres_test.go        |  56 ++++
 .../sqlhooks/sqlhooks_sqlite3_test.go         |  54 ++++
 .../gchaincl/sqlhooks/sqlhooks_test.go        | 167 +++++++++++
 51 files changed, 1668 insertions(+), 208 deletions(-)
 create mode 100644 src/github.com/matrix-org/dendrite/common/tracers.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/CHANGELOG.md
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/LICENSE
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/README.md
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/benchmark_test.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/doc.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/example_test.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/examples/main.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/loghooks.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/examples/main.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks_test.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/sqlhooks.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_mysql_test.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_postgres_test.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_sqlite3_test.go
 create mode 100644 vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_test.go

diff --git a/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/storage.go b/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/storage.go
index d5712eb5..06df0f72 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/storage.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/auth/storage/accounts/storage.go
@@ -24,7 +24,6 @@ import (
 	"github.com/matrix-org/gomatrixserverlib"
 	"golang.org/x/crypto/bcrypt"
 	// Import the postgres database driver.
-	_ "github.com/lib/pq"
 )
 
 // Database represents an account database
@@ -41,10 +40,10 @@ type Database struct {
 }
 
 // NewDatabase creates a new accounts and profiles database
-func NewDatabase(dataSourceName string, serverName gomatrixserverlib.ServerName) (*Database, error) {
+func NewDatabase(tracers *common.Tracers, dataSourceName string, serverName gomatrixserverlib.ServerName) (*Database, error) {
 	var db *sql.DB
 	var err error
-	if db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if db, err = common.OpenPostgresWithTracing(tracers, "accounts", dataSourceName); err != nil {
 		return nil, err
 	}
 	partitions := common.PartitionOffsetStatements{}
diff --git a/src/github.com/matrix-org/dendrite/clientapi/auth/storage/devices/storage.go b/src/github.com/matrix-org/dendrite/clientapi/auth/storage/devices/storage.go
index 6ac475a6..bced276c 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/auth/storage/devices/storage.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/auth/storage/devices/storage.go
@@ -31,10 +31,10 @@ type Database struct {
 }
 
 // NewDatabase creates a new device database
-func NewDatabase(dataSourceName string, serverName gomatrixserverlib.ServerName) (*Database, error) {
+func NewDatabase(tracers *common.Tracers, dataSourceName string, serverName gomatrixserverlib.ServerName) (*Database, error) {
 	var db *sql.DB
 	var err error
-	if db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if db, err = common.OpenPostgresWithTracing(tracers, "devices", dataSourceName); err != nil {
 		return nil, err
 	}
 	d := devicesStatements{}
diff --git a/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go
index ad8acacf..ef75a600 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/consumers/roomserver.go
@@ -23,6 +23,7 @@ import (
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
 
 	log "github.com/sirupsen/logrus"
 	sarama "gopkg.in/Shopify/sarama.v1"
@@ -34,6 +35,7 @@ type OutputRoomEventConsumer struct {
 	db                 *accounts.Database
 	query              api.RoomserverQueryAPI
 	serverName         string
+	tracer             opentracing.Tracer
 }
 
 // NewOutputRoomEventConsumer creates a new OutputRoomEventConsumer. Call Start() to begin consuming from room servers.
@@ -42,6 +44,7 @@ func NewOutputRoomEventConsumer(
 	kafkaConsumer sarama.Consumer,
 	store *accounts.Database,
 	queryAPI api.RoomserverQueryAPI,
+	tracer opentracing.Tracer,
 ) *OutputRoomEventConsumer {
 
 	consumer := common.ContinualConsumer{
@@ -54,6 +57,7 @@ func NewOutputRoomEventConsumer(
 		db:                 store,
 		query:              queryAPI,
 		serverName:         string(cfg.Matrix.ServerName),
+		tracer:             tracer,
 	}
 	consumer.ProcessMessage = s.onMessage
 
@@ -77,7 +81,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
-	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	ctx, span := output.StartSpanAndReplaceContext(context.Background(), s.tracer)
 	defer span.Finish()
 
 	if output.Type != api.OutputTypeNewRoomEvent {
diff --git a/src/github.com/matrix-org/dendrite/clientapi/routing/routing.go b/src/github.com/matrix-org/dendrite/clientapi/routing/routing.go
index a7999bf4..0b562da7 100644
--- a/src/github.com/matrix-org/dendrite/clientapi/routing/routing.go
+++ b/src/github.com/matrix-org/dendrite/clientapi/routing/routing.go
@@ -30,6 +30,7 @@ import (
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 const pathPrefixV1 = "/_matrix/client/api/v1"
@@ -48,10 +49,10 @@ func Setup(
 	keyRing gomatrixserverlib.KeyRing,
 	userUpdateProducer *producers.UserUpdateProducer,
 	syncProducer *producers.SyncAPIProducer,
+	tracer opentracing.Tracer,
 ) {
-
 	apiMux.Handle("/_matrix/client/versions",
-		common.MakeExternalAPI("versions", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "versions", func(req *http.Request) util.JSONResponse {
 			return util.JSONResponse{
 				Code: 200,
 				JSON: struct {
@@ -70,12 +71,12 @@ func Setup(
 	unstableMux := apiMux.PathPrefix(pathPrefixUnstable).Subrouter()
 
 	r0mux.Handle("/createRoom",
-		common.MakeAuthAPI("createRoom", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "createRoom", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return CreateRoom(req, device, cfg, producer, accountDB, aliasAPI)
 		}),
 	).Methods("POST", "OPTIONS")
 	r0mux.Handle("/join/{roomIDOrAlias}",
-		common.MakeAuthAPI("join", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "join", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return JoinRoomByIDOrAlias(
 				req, device, vars["roomIDOrAlias"], cfg, federation, producer, queryAPI, aliasAPI, keyRing, accountDB,
@@ -83,26 +84,26 @@ func Setup(
 		}),
 	).Methods("POST", "OPTIONS")
 	r0mux.Handle("/rooms/{roomID}/{membership:(?:join|kick|ban|unban|leave|invite)}",
-		common.MakeAuthAPI("membership", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "membership", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SendMembership(req, accountDB, device, vars["roomID"], vars["membership"], cfg, queryAPI, producer)
 		}),
 	).Methods("POST", "OPTIONS")
 	r0mux.Handle("/rooms/{roomID}/send/{eventType}",
-		common.MakeAuthAPI("send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SendEvent(req, device, vars["roomID"], vars["eventType"], nil, nil, cfg, queryAPI, producer)
 		}),
 	).Methods("POST", "OPTIONS")
 	r0mux.Handle("/rooms/{roomID}/send/{eventType}/{txnID}",
-		common.MakeAuthAPI("send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			txnID := vars["txnID"]
 			return SendEvent(req, device, vars["roomID"], vars["eventType"], &txnID, nil, cfg, queryAPI, producer)
 		}),
 	).Methods("PUT", "OPTIONS")
 	r0mux.Handle("/rooms/{roomID}/state/{eventType:[^/]+/?}",
-		common.MakeAuthAPI("send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			emptyString := ""
 			eventType := vars["eventType"]
@@ -114,54 +115,54 @@ func Setup(
 		}),
 	).Methods("PUT", "OPTIONS")
 	r0mux.Handle("/rooms/{roomID}/state/{eventType}/{stateKey}",
-		common.MakeAuthAPI("send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "send_message", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			stateKey := vars["stateKey"]
 			return SendEvent(req, device, vars["roomID"], vars["eventType"], nil, &stateKey, cfg, queryAPI, producer)
 		}),
 	).Methods("PUT", "OPTIONS")
 
-	r0mux.Handle("/register", common.MakeExternalAPI("register", func(req *http.Request) util.JSONResponse {
+	r0mux.Handle("/register", common.MakeExternalAPI(tracer, "register", func(req *http.Request) util.JSONResponse {
 		return Register(req, accountDB, deviceDB, &cfg)
 	})).Methods("POST", "OPTIONS")
 
-	v1mux.Handle("/register", common.MakeExternalAPI("register", func(req *http.Request) util.JSONResponse {
+	v1mux.Handle("/register", common.MakeExternalAPI(tracer, "register", func(req *http.Request) util.JSONResponse {
 		return LegacyRegister(req, accountDB, deviceDB, &cfg)
 	})).Methods("POST", "OPTIONS")
 
-	r0mux.Handle("/register/available", common.MakeExternalAPI("registerAvailable", func(req *http.Request) util.JSONResponse {
+	r0mux.Handle("/register/available", common.MakeExternalAPI(tracer, "registerAvailable", func(req *http.Request) util.JSONResponse {
 		return RegisterAvailable(req, accountDB)
 	})).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/directory/room/{roomAlias}",
-		common.MakeAuthAPI("directory_room", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "directory_room", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return DirectoryRoom(req, vars["roomAlias"], federation, &cfg, aliasAPI)
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/directory/room/{roomAlias}",
-		common.MakeAuthAPI("directory_room", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "directory_room", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SetLocalAlias(req, device, vars["roomAlias"], &cfg, aliasAPI)
 		}),
 	).Methods("PUT", "OPTIONS")
 
 	r0mux.Handle("/directory/room/{roomAlias}",
-		common.MakeAuthAPI("directory_room", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "directory_room", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return RemoveLocalAlias(req, device, vars["roomAlias"], aliasAPI)
 		}),
 	).Methods("DELETE", "OPTIONS")
 
 	r0mux.Handle("/logout",
-		common.MakeAuthAPI("logout", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "logout", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return Logout(req, deviceDB, device)
 		}),
 	).Methods("POST", "OPTIONS")
 
 	r0mux.Handle("/logout/all",
-		common.MakeAuthAPI("logout", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "logout", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return LogoutAll(req, deviceDB, device)
 		}),
 	).Methods("POST", "OPTIONS")
@@ -169,13 +170,13 @@ func Setup(
 	// Stub endpoints required by Riot
 
 	r0mux.Handle("/login",
-		common.MakeExternalAPI("login", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "login", func(req *http.Request) util.JSONResponse {
 			return Login(req, accountDB, deviceDB, cfg)
 		}),
 	).Methods("GET", "POST", "OPTIONS")
 
 	r0mux.Handle("/pushrules/",
-		common.MakeExternalAPI("push_rules", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "push_rules", func(req *http.Request) util.JSONResponse {
 			// TODO: Implement push rules API
 			res := json.RawMessage(`{
 					"global": {
@@ -194,14 +195,14 @@ func Setup(
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/user/{userId}/filter",
-		common.MakeAuthAPI("put_filter", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "put_filter", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return PutFilter(req, device, accountDB, vars["userId"])
 		}),
 	).Methods("POST", "OPTIONS")
 
 	r0mux.Handle("/user/{userId}/filter/{filterId}",
-		common.MakeAuthAPI("get_filter", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "get_filter", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetFilter(req, device, accountDB, vars["userId"], vars["filterId"])
 		}),
@@ -210,21 +211,21 @@ func Setup(
 	// Riot user settings
 
 	r0mux.Handle("/profile/{userID}",
-		common.MakeExternalAPI("profile", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "profile", func(req *http.Request) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetProfile(req, accountDB, vars["userID"])
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/profile/{userID}/avatar_url",
-		common.MakeExternalAPI("profile_avatar_url", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "profile_avatar_url", func(req *http.Request) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetAvatarURL(req, accountDB, vars["userID"])
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/profile/{userID}/avatar_url",
-		common.MakeAuthAPI("profile_avatar_url", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "profile_avatar_url", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SetAvatarURL(req, accountDB, device, vars["userID"], userUpdateProducer, &cfg, producer, queryAPI)
 		}),
@@ -233,14 +234,14 @@ func Setup(
 	// PUT requests, so we need to allow this method
 
 	r0mux.Handle("/profile/{userID}/displayname",
-		common.MakeExternalAPI("profile_displayname", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "profile_displayname", func(req *http.Request) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetDisplayName(req, accountDB, vars["userID"])
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/profile/{userID}/displayname",
-		common.MakeAuthAPI("profile_displayname", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "profile_displayname", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SetDisplayName(req, accountDB, device, vars["userID"], userUpdateProducer, &cfg, producer, queryAPI)
 		}),
@@ -249,32 +250,32 @@ func Setup(
 	// PUT requests, so we need to allow this method
 
 	r0mux.Handle("/account/3pid",
-		common.MakeAuthAPI("account_3pid", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "account_3pid", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return GetAssociated3PIDs(req, accountDB, device)
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/account/3pid",
-		common.MakeAuthAPI("account_3pid", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "account_3pid", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return CheckAndSave3PIDAssociation(req, accountDB, device, cfg)
 		}),
 	).Methods("POST", "OPTIONS")
 
 	unstableMux.Handle("/account/3pid/delete",
-		common.MakeAuthAPI("account_3pid", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "account_3pid", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return Forget3PID(req, accountDB)
 		}),
 	).Methods("POST", "OPTIONS")
 
 	r0mux.Handle("/{path:(?:account/3pid|register)}/email/requestToken",
-		common.MakeExternalAPI("account_3pid_request_token", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "account_3pid_request_token", func(req *http.Request) util.JSONResponse {
 			return RequestEmailToken(req, accountDB, cfg)
 		}),
 	).Methods("POST", "OPTIONS")
 
 	// Riot logs get flooded unless this is handled
 	r0mux.Handle("/presence/{userID}/status",
-		common.MakeExternalAPI("presence", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "presence", func(req *http.Request) util.JSONResponse {
 			// TODO: Set presence (probably the responsibility of a presence server not clientapi)
 			return util.JSONResponse{
 				Code: 200,
@@ -284,13 +285,13 @@ func Setup(
 	).Methods("PUT", "OPTIONS")
 
 	r0mux.Handle("/voip/turnServer",
-		common.MakeAuthAPI("turn_server", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "turn_server", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return RequestTurnServer(req, device, cfg)
 		}),
 	).Methods("GET", "OPTIONS")
 
 	unstableMux.Handle("/thirdparty/protocols",
-		common.MakeExternalAPI("thirdparty_protocols", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "thirdparty_protocols", func(req *http.Request) util.JSONResponse {
 			// TODO: Return the third party protcols
 			return util.JSONResponse{
 				Code: 200,
@@ -300,7 +301,7 @@ func Setup(
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/rooms/{roomID}/initialSync",
-		common.MakeExternalAPI("rooms_initial_sync", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "rooms_initial_sync", func(req *http.Request) util.JSONResponse {
 			// TODO: Allow people to peek into rooms.
 			return util.JSONResponse{
 				Code: 403,
@@ -310,62 +311,62 @@ func Setup(
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/user/{userID}/account_data/{type}",
-		common.MakeAuthAPI("user_account_data", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "user_account_data", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SaveAccountData(req, accountDB, device, vars["userID"], "", vars["type"], syncProducer)
 		}),
 	).Methods("PUT", "OPTIONS")
 
 	r0mux.Handle("/user/{userID}/rooms/{roomID}/account_data/{type}",
-		common.MakeAuthAPI("user_account_data", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "user_account_data", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return SaveAccountData(req, accountDB, device, vars["userID"], vars["roomID"], vars["type"], syncProducer)
 		}),
 	).Methods("PUT", "OPTIONS")
 
 	r0mux.Handle("/rooms/{roomID}/members",
-		common.MakeAuthAPI("rooms_members", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "rooms_members", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetMemberships(req, device, vars["roomID"], false, cfg, queryAPI)
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/rooms/{roomID}/joined_members",
-		common.MakeAuthAPI("rooms_members", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "rooms_members", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetMemberships(req, device, vars["roomID"], true, cfg, queryAPI)
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/rooms/{roomID}/read_markers",
-		common.MakeExternalAPI("rooms_read_markers", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "rooms_read_markers", func(req *http.Request) util.JSONResponse {
 			// TODO: return the read_markers.
 			return util.JSONResponse{Code: 200, JSON: struct{}{}}
 		}),
 	).Methods("POST", "OPTIONS")
 
 	r0mux.Handle("/rooms/{roomID}/typing/{userID}",
-		common.MakeExternalAPI("rooms_typing", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "rooms_typing", func(req *http.Request) util.JSONResponse {
 			// TODO: handling typing
 			return util.JSONResponse{Code: 200, JSON: struct{}{}}
 		}),
 	).Methods("PUT", "OPTIONS")
 
 	r0mux.Handle("/devices",
-		common.MakeAuthAPI("get_devices", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "get_devices", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			return GetDevicesByLocalpart(req, deviceDB, device)
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/device/{deviceID}",
-		common.MakeAuthAPI("get_device", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "get_device", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return GetDeviceByID(req, deviceDB, device, vars["deviceID"])
 		}),
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/devices/{deviceID}",
-		common.MakeAuthAPI("device_data", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "device_data", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return UpdateDeviceByID(req, deviceDB, device, vars["deviceID"])
 		}),
@@ -373,7 +374,7 @@ func Setup(
 
 	// Stub implementations for sytest
 	r0mux.Handle("/events",
-		common.MakeExternalAPI("events", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "events", func(req *http.Request) util.JSONResponse {
 			return util.JSONResponse{Code: 200, JSON: map[string]interface{}{
 				"chunk": []interface{}{},
 				"start": "",
@@ -383,7 +384,7 @@ func Setup(
 	).Methods("GET", "OPTIONS")
 
 	r0mux.Handle("/initialSync",
-		common.MakeExternalAPI("initial_sync", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "initial_sync", func(req *http.Request) util.JSONResponse {
 			return util.JSONResponse{Code: 200, JSON: map[string]interface{}{
 				"end": "",
 			}}
diff --git a/src/github.com/matrix-org/dendrite/cmd/create-account/main.go b/src/github.com/matrix-org/dendrite/cmd/create-account/main.go
index 7914a626..d43e932a 100644
--- a/src/github.com/matrix-org/dendrite/cmd/create-account/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/create-account/main.go
@@ -22,6 +22,7 @@ import (
 
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/gomatrixserverlib"
 )
 
@@ -63,7 +64,7 @@ func main() {
 
 	serverName := gomatrixserverlib.ServerName(*serverNameStr)
 
-	accountDB, err := accounts.NewDatabase(*database, serverName)
+	accountDB, err := accounts.NewDatabase(common.NoopTracers(), *database, serverName)
 	if err != nil {
 		fmt.Println(err.Error())
 		os.Exit(1)
@@ -75,7 +76,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	deviceDB, err := devices.NewDatabase(*database, serverName)
+	deviceDB, err := devices.NewDatabase(common.NoopTracers(), *database, serverName)
 	if err != nil {
 		fmt.Println(err.Error())
 		os.Exit(1)
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go
index 8794107f..d3e17c72 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-client-api-server/main.go
@@ -19,6 +19,8 @@ import (
 	"net/http"
 	"os"
 
+	"github.com/opentracing/opentracing-go"
+
 	"github.com/gorilla/mux"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
@@ -51,11 +53,13 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteClientAPI")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - ClientAPI")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
 	queryAPI := api.NewRoomserverQueryAPIHTTP(cfg.RoomServerURL(), nil)
 	aliasAPI := api.NewRoomserverAliasAPIHTTP(cfg.RoomServerURL(), nil)
@@ -85,15 +89,15 @@ func main() {
 		cfg.Matrix.ServerName, cfg.Matrix.KeyID, cfg.Matrix.PrivateKey,
 	)
 
-	accountDB, err := accounts.NewDatabase(string(cfg.Database.Account), cfg.Matrix.ServerName)
+	accountDB, err := accounts.NewDatabase(tracers, string(cfg.Database.Account), cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("Failed to setup account database(%q): %s", cfg.Database.Account, err.Error())
 	}
-	deviceDB, err := devices.NewDatabase(string(cfg.Database.Device), cfg.Matrix.ServerName)
+	deviceDB, err := devices.NewDatabase(tracers, string(cfg.Database.Device), cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("Failed to setup device database(%q): %s", cfg.Database.Device, err.Error())
 	}
-	keyDB, err := keydb.NewDatabase(string(cfg.Database.ServerKey))
+	keyDB, err := keydb.NewDatabase(tracers, string(cfg.Database.ServerKey))
 	if err != nil {
 		log.Panicf("Failed to setup key database(%q): %s", cfg.Database.ServerKey, err.Error())
 	}
@@ -108,7 +112,7 @@ func main() {
 		}).Panic("Failed to setup kafka consumers")
 	}
 
-	consumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, accountDB, queryAPI)
+	consumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, accountDB, queryAPI, opentracing.GlobalTracer())
 	if err = consumer.Start(); err != nil {
 		log.Panicf("startup: failed to start room server consumer")
 	}
@@ -120,6 +124,7 @@ func main() {
 		api, *cfg, roomserverProducer,
 		queryAPI, aliasAPI, accountDB, deviceDB, federation, keyRing,
 		userUpdateProducer, syncProducer,
+		opentracing.GlobalTracer(),
 	)
 	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-api-server/main.go
index 53587ee2..32b199ec 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-api-server/main.go
@@ -28,6 +28,7 @@ import (
 	"github.com/matrix-org/dendrite/federationapi/routing"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
 
 	log "github.com/sirupsen/logrus"
 )
@@ -50,22 +51,24 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteFederationAPI")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - FenderationAPI")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
 	federation := gomatrixserverlib.NewFederationClient(
 		cfg.Matrix.ServerName, cfg.Matrix.KeyID, cfg.Matrix.PrivateKey,
 	)
 
-	keyDB, err := keydb.NewDatabase(string(cfg.Database.ServerKey))
+	keyDB, err := keydb.NewDatabase(tracers, string(cfg.Database.ServerKey))
 	if err != nil {
 		log.Panicf("Failed to setup key database(%q): %s", cfg.Database.ServerKey, err.Error())
 	}
 
-	accountDB, err := accounts.NewDatabase(string(cfg.Database.Account), cfg.Matrix.ServerName)
+	accountDB, err := accounts.NewDatabase(tracers, string(cfg.Database.Account), cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("Failed to setup account database(%q): %s", cfg.Database.Account, err.Error())
 	}
@@ -91,7 +94,7 @@ func main() {
 	log.Info("Starting federation API server on ", cfg.Listen.FederationAPI)
 
 	api := mux.NewRouter()
-	routing.Setup(api, *cfg, queryAPI, aliasAPI, roomserverProducer, keyRing, federation, accountDB)
+	routing.Setup(api, *cfg, queryAPI, aliasAPI, roomserverProducer, keyRing, federation, accountDB, opentracing.GlobalTracer())
 	common.SetupHTTPAPI(http.DefaultServeMux, api)
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.FederationAPI), nil))
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-sender-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-sender-server/main.go
index 656b6ada..0f23cd3f 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-sender-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-federation-sender-server/main.go
@@ -27,6 +27,7 @@ import (
 	"github.com/matrix-org/dendrite/federationsender/storage"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
 
 	log "github.com/sirupsen/logrus"
 	sarama "gopkg.in/Shopify/sarama.v1"
@@ -47,11 +48,13 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteFederationSender")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - Federation Sender")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
 	kafkaConsumer, err := sarama.NewConsumer(cfg.Kafka.Addresses, nil)
 	if err != nil {
@@ -63,7 +66,7 @@ func main() {
 
 	queryAPI := api.NewRoomserverQueryAPIHTTP(cfg.RoomServerURL(), nil)
 
-	db, err := storage.NewDatabase(string(cfg.Database.FederationSender))
+	db, err := storage.NewDatabase(tracers, string(cfg.Database.FederationSender))
 	if err != nil {
 		log.Panicf("startup: failed to create federation sender database with data source %s : %s", cfg.Database.FederationSender, err)
 	}
@@ -74,7 +77,7 @@ func main() {
 
 	queues := queue.NewOutgoingQueues(cfg.Matrix.ServerName, federation)
 
-	consumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, queues, db, queryAPI)
+	consumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, queues, db, queryAPI, opentracing.GlobalTracer())
 	if err = consumer.Start(); err != nil {
 		log.WithError(err).Panicf("startup: failed to start room server consumer")
 	}
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go
index bc16dee7..7d537b16 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-media-api-server/main.go
@@ -26,6 +26,7 @@ import (
 	"github.com/matrix-org/dendrite/mediaapi/routing"
 	"github.com/matrix-org/dendrite/mediaapi/storage"
 	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
 
 	log "github.com/sirupsen/logrus"
 )
@@ -48,18 +49,20 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteMediaAPI")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - MediaAPI")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
-	db, err := storage.Open(string(cfg.Database.MediaAPI))
+	db, err := storage.Open(tracers, string(cfg.Database.MediaAPI))
 	if err != nil {
 		log.WithError(err).Panic("Failed to open database")
 	}
 
-	deviceDB, err := devices.NewDatabase(string(cfg.Database.Device), cfg.Matrix.ServerName)
+	deviceDB, err := devices.NewDatabase(tracers, string(cfg.Database.Device), cfg.Matrix.ServerName)
 	if err != nil {
 		log.WithError(err).Panicf("Failed to setup device database(%q)", cfg.Database.Device)
 	}
@@ -69,7 +72,7 @@ func main() {
 	log.Info("Starting media API server on ", cfg.Listen.MediaAPI)
 
 	api := mux.NewRouter()
-	routing.Setup(api, cfg, db, deviceDB, client)
+	routing.Setup(api, cfg, db, deviceDB, client, opentracing.GlobalTracer())
 	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.MediaAPI), nil))
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go
index 9ecfd60a..ba83ec07 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-monolith-server/main.go
@@ -21,6 +21,8 @@ import (
 	"net/http"
 	"os"
 
+	"github.com/opentracing/opentracing-go"
+
 	"github.com/gorilla/mux"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
@@ -84,13 +86,15 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteMonolith")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("DendriteMonolith")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
-	m := newMonolith(cfg)
+	m := newMonolith(cfg, tracers)
 	m.setupDatabases()
 	m.setupFederation()
 	m.setupKafka()
@@ -136,8 +140,8 @@ type monolith struct {
 	federation *gomatrixserverlib.FederationClient
 	keyRing    gomatrixserverlib.KeyRing
 
-	inputAPI *roomserver_input.RoomserverInputAPI
-	queryAPI *roomserver_query.RoomserverQueryAPI
+	inputAPI *roomserver_input.InProcessRoomServerInput
+	queryAPI *roomserver_query.InProcessRoomServerQueryAPI
 	aliasAPI *roomserver_alias.RoomserverAliasAPI
 
 	naffka        *naffka.Naffka
@@ -148,43 +152,61 @@ type monolith struct {
 	syncProducer       *producers.SyncAPIProducer
 
 	syncAPINotifier *syncapi_sync.Notifier
+
+	tracers              *common.Tracers
+	clientAPITracer      opentracing.Tracer
+	syncAPITracer        opentracing.Tracer
+	mediaAPITracer       opentracing.Tracer
+	federationAPITracer  opentracing.Tracer
+	publicRoomsAPITracer opentracing.Tracer
+	roomServerTracer     opentracing.Tracer
 }
 
-func newMonolith(cfg *config.Dendrite) *monolith {
-	return &monolith{cfg: cfg, api: mux.NewRouter()}
+func newMonolith(cfg *config.Dendrite, tracers *common.Tracers) *monolith {
+	return &monolith{
+		cfg:                  cfg,
+		api:                  mux.NewRouter(),
+		tracers:              tracers,
+		clientAPITracer:      tracers.SetupNewTracer("ClientAPI"),
+		syncAPITracer:        tracers.SetupNewTracer("SyncAPI"),
+		mediaAPITracer:       tracers.SetupNewTracer("MediaAPI"),
+		federationAPITracer:  tracers.SetupNewTracer("FederationAPI"),
+		publicRoomsAPITracer: tracers.SetupNewTracer("PublicRooms"),
+		roomServerTracer:     tracers.SetupNewTracer("RoomServer"),
+	}
 }
 
 func (m *monolith) setupDatabases() {
 	var err error
-	m.roomServerDB, err = roomserver_storage.Open(string(m.cfg.Database.RoomServer))
+	m.roomServerDB, err = roomserver_storage.Open(m.tracers, string(m.cfg.Database.RoomServer))
 	if err != nil {
 		panic(err)
 	}
-	m.accountDB, err = accounts.NewDatabase(string(m.cfg.Database.Account), m.cfg.Matrix.ServerName)
+	m.accountDB, err = accounts.NewDatabase(m.tracers, string(m.cfg.Database.Account), m.cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("Failed to setup account database(%q): %s", m.cfg.Database.Account, err.Error())
 	}
-	m.deviceDB, err = devices.NewDatabase(string(m.cfg.Database.Device), m.cfg.Matrix.ServerName)
+	m.deviceDB, err = devices.NewDatabase(m.tracers, string(m.cfg.Database.Device), m.cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("Failed to setup device database(%q): %s", m.cfg.Database.Device, err.Error())
 	}
-	m.keyDB, err = keydb.NewDatabase(string(m.cfg.Database.ServerKey))
+	m.keyDB, err = keydb.NewDatabase(m.tracers, string(m.cfg.Database.ServerKey))
 	if err != nil {
 		log.Panicf("Failed to setup key database(%q): %s", m.cfg.Database.ServerKey, err.Error())
 	}
-	m.mediaAPIDB, err = mediaapi_storage.Open(string(m.cfg.Database.MediaAPI))
+	m.mediaAPIDB, err = mediaapi_storage.Open(m.tracers, string(m.cfg.Database.MediaAPI))
 	if err != nil {
 		log.Panicf("Failed to setup sync api database(%q): %s", m.cfg.Database.MediaAPI, err.Error())
 	}
-	m.syncAPIDB, err = syncapi_storage.NewSyncServerDatabase(string(m.cfg.Database.SyncAPI))
+	m.syncAPIDB, err = syncapi_storage.NewSyncServerDatabase(m.tracers, string(m.cfg.Database.SyncAPI))
 	if err != nil {
 		log.Panicf("Failed to setup sync api database(%q): %s", m.cfg.Database.SyncAPI, err.Error())
 	}
-	m.federationSenderDB, err = federationsender_storage.NewDatabase(string(m.cfg.Database.FederationSender))
+	m.federationSenderDB, err = federationsender_storage.NewDatabase(m.tracers, string(m.cfg.Database.FederationSender))
 	if err != nil {
 		log.Panicf("startup: failed to create federation sender database with data source %s : %s", m.cfg.Database.FederationSender, err)
 	}
-	m.publicRoomsAPIDB, err = publicroomsapi_storage.NewPublicRoomsServerDatabase(string(m.cfg.Database.PublicRoomsAPI))
+	m.publicRoomsAPIDB, err = publicroomsapi_storage.NewPublicRoomsServerDatabase(m.tracers, string(m.cfg.Database.PublicRoomsAPI))
 	if err != nil {
 		log.Panicf("startup: failed to setup public rooms api database with data source %s : %s", m.cfg.Database.PublicRoomsAPI, err)
 	}
@@ -249,15 +271,22 @@ func (m *monolith) kafkaConsumer() sarama.Consumer {
 }
 
 func (m *monolith) setupRoomServer() {
-	m.inputAPI = &roomserver_input.RoomserverInputAPI{
-		DB:                   m.roomServerDB,
-		Producer:             m.kafkaProducer,
-		OutputRoomEventTopic: string(m.cfg.Kafka.Topics.OutputRoomEvent),
-	}
+	m.inputAPI = roomserver_input.NewInProcessRoomServerInput(
+		roomserver_input.RoomserverInputAPI{
+			DB:                   m.roomServerDB,
+			Producer:             m.kafkaProducer,
+			OutputRoomEventTopic: string(m.cfg.Kafka.Topics.OutputRoomEvent),
+		},
+		m.roomServerTracer,
+	)
 
-	m.queryAPI = &roomserver_query.RoomserverQueryAPI{
-		DB: m.roomServerDB,
-	}
+	q := roomserver_query.NewInProcessRoomServerQueryAPI(
+		roomserver_query.RoomserverQueryAPI{
+			DB: m.roomServerDB,
+		},
+		m.roomServerTracer,
+	)
+	m.queryAPI = &q
 
 	m.aliasAPI = &roomserver_alias.RoomserverAliasAPI{
 		DB:       m.roomServerDB,
@@ -296,6 +325,7 @@ func (m *monolith) setupConsumers() {
 
 	clientAPIConsumer := clientapi_consumers.NewOutputRoomEventConsumer(
 		m.cfg, m.kafkaConsumer(), m.accountDB, m.queryAPI,
+		m.clientAPITracer,
 	)
 	if err = clientAPIConsumer.Start(); err != nil {
 		log.Panicf("startup: failed to start room server consumer: %s", err)
@@ -303,6 +333,7 @@ func (m *monolith) setupConsumers() {
 
 	syncAPIRoomConsumer := syncapi_consumers.NewOutputRoomEventConsumer(
 		m.cfg, m.kafkaConsumer(), m.syncAPINotifier, m.syncAPIDB, m.queryAPI,
+		m.syncAPITracer,
 	)
 	if err = syncAPIRoomConsumer.Start(); err != nil {
 		log.Panicf("startup: failed to start room server consumer: %s", err)
@@ -316,7 +347,7 @@ func (m *monolith) setupConsumers() {
 	}
 
 	publicRoomsAPIConsumer := publicroomsapi_consumers.NewOutputRoomEventConsumer(
-		m.cfg, m.kafkaConsumer(), m.publicRoomsAPIDB, m.queryAPI,
+		m.cfg, m.kafkaConsumer(), m.publicRoomsAPIDB, m.queryAPI, m.publicRoomsAPITracer,
 	)
 	if err = publicRoomsAPIConsumer.Start(); err != nil {
 		log.Panicf("startup: failed to start room server consumer: %s", err)
@@ -326,6 +357,7 @@ func (m *monolith) setupConsumers() {
 
 	federationSenderRoomConsumer := federationsender_consumers.NewOutputRoomEventConsumer(
 		m.cfg, m.kafkaConsumer(), federationSenderQueues, m.federationSenderDB, m.queryAPI,
+		m.federationAPITracer,
 	)
 	if err = federationSenderRoomConsumer.Start(); err != nil {
 		log.WithError(err).Panicf("startup: failed to start room server consumer")
@@ -337,20 +369,22 @@ func (m *monolith) setupAPIs() {
 		m.api, *m.cfg, m.roomServerProducer,
 		m.queryAPI, m.aliasAPI, m.accountDB, m.deviceDB, m.federation, m.keyRing,
 		m.userUpdateProducer, m.syncProducer,
+		m.clientAPITracer,
 	)
 
 	mediaapi_routing.Setup(
 		m.api, m.cfg, m.mediaAPIDB, m.deviceDB, &m.federation.Client,
+		m.mediaAPITracer,
 	)
 
 	syncapi_routing.Setup(m.api, syncapi_sync.NewRequestPool(
 		m.syncAPIDB, m.syncAPINotifier, m.accountDB,
-	), m.syncAPIDB, m.deviceDB)
+	), m.syncAPIDB, m.deviceDB, m.syncAPITracer)
 
 	federationapi_routing.Setup(
 		m.api, *m.cfg, m.queryAPI, m.aliasAPI, m.roomServerProducer, m.keyRing, m.federation,
-		m.accountDB,
+		m.accountDB, m.federationAPITracer,
 	)
 
-	publicroomsapi_routing.Setup(m.api, m.deviceDB, m.publicRoomsAPIDB)
+	publicroomsapi_routing.Setup(m.api, m.deviceDB, m.publicRoomsAPIDB, m.publicRoomsAPITracer)
 }
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
index 24aae0da..fcc5c383 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
@@ -19,6 +19,8 @@ import (
 	"net/http"
 	"os"
 
+	"github.com/opentracing/opentracing-go"
+
 	"github.com/gorilla/mux"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
 	"github.com/matrix-org/dendrite/common"
@@ -47,20 +49,22 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendritePublicRoomsAPI")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - Public Rooms API")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
 	queryAPI := api.NewRoomserverQueryAPIHTTP(cfg.RoomServerURL(), nil)
 
-	db, err := storage.NewPublicRoomsServerDatabase(string(cfg.Database.PublicRoomsAPI))
+	db, err := storage.NewPublicRoomsServerDatabase(tracers, string(cfg.Database.PublicRoomsAPI))
 	if err != nil {
 		log.Panicf("startup: failed to create public rooms server database with data source %s : %s", cfg.Database.PublicRoomsAPI, err)
 	}
 
-	deviceDB, err := devices.NewDatabase(string(cfg.Database.Device), cfg.Matrix.ServerName)
+	deviceDB, err := devices.NewDatabase(tracers, string(cfg.Database.Device), cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("startup: failed to create device database with data source %s : %s", cfg.Database.Device, err)
 	}
@@ -73,7 +77,7 @@ func main() {
 		}).Panic("Failed to setup kafka consumers")
 	}
 
-	roomConsumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, db, queryAPI)
+	roomConsumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, db, queryAPI, opentracing.GlobalTracer())
 	if err != nil {
 		log.Panicf("startup: failed to create room server consumer: %s", err)
 	}
@@ -84,7 +88,7 @@ func main() {
 	log.Info("Starting public rooms server on ", cfg.Listen.PublicRoomsAPI)
 
 	api := mux.NewRouter()
-	routing.Setup(api, deviceDB, db)
+	routing.Setup(api, deviceDB, db, opentracing.GlobalTracer())
 	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.PublicRoomsAPI), nil))
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-room-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-room-server/main.go
index 06773972..d97913e5 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-room-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-room-server/main.go
@@ -20,6 +20,8 @@ import (
 	_ "net/http/pprof"
 	"os"
 
+	"github.com/opentracing/opentracing-go"
+
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dendrite/roomserver/alias"
@@ -49,13 +51,15 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteRoomServer")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - RoomServer")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
-	db, err := storage.Open(string(cfg.Database.RoomServer))
+	db, err := storage.Open(tracers, string(cfg.Database.RoomServer))
 	if err != nil {
 		panic(err)
 	}
@@ -71,11 +75,11 @@ func main() {
 		OutputRoomEventTopic: string(cfg.Kafka.Topics.OutputRoomEvent),
 	}
 
-	inputAPI.SetupHTTP(http.DefaultServeMux)
+	inputAPI.SetupHTTP(http.DefaultServeMux, opentracing.GlobalTracer())
 
 	queryAPI := query.RoomserverQueryAPI{DB: db}
 
-	queryAPI.SetupHTTP(http.DefaultServeMux)
+	queryAPI.SetupHTTP(http.DefaultServeMux, opentracing.GlobalTracer())
 
 	aliasAPI := alias.RoomserverAliasAPI{
 		DB:       db,
@@ -84,7 +88,7 @@ func main() {
 		QueryAPI: &queryAPI,
 	}
 
-	aliasAPI.SetupHTTP(http.DefaultServeMux)
+	aliasAPI.SetupHTTP(http.DefaultServeMux, opentracing.GlobalTracer())
 
 	// This is deprecated, but prometheus are still arguing on what to replace
 	// it with. Alternatively we could set it up manually.
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go
index 16ae228b..1495b0db 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-api-server/main.go
@@ -20,6 +20,8 @@ import (
 	"net/http"
 	"os"
 
+	"github.com/opentracing/opentracing-go"
+
 	"github.com/gorilla/mux"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
@@ -51,25 +53,27 @@ func main() {
 		log.Fatalf("Invalid config file: %s", err)
 	}
 
-	closer, err := cfg.SetupTracing("DendriteSyncAPI")
+	tracers := common.NewTracers(cfg)
+	defer tracers.Close() // nolint: errcheck
+
+	err = tracers.InitGlobalTracer("Dendrite - SyncAPI")
 	if err != nil {
 		log.WithError(err).Fatalf("Failed to start tracer")
 	}
-	defer closer.Close() // nolint: errcheck
 
 	queryAPI := api.NewRoomserverQueryAPIHTTP(cfg.RoomServerURL(), nil)
 
-	db, err := storage.NewSyncServerDatabase(string(cfg.Database.SyncAPI))
+	db, err := storage.NewSyncServerDatabase(tracers, string(cfg.Database.SyncAPI))
 	if err != nil {
 		log.Panicf("startup: failed to create sync server database with data source %s : %s", cfg.Database.SyncAPI, err)
 	}
 
-	deviceDB, err := devices.NewDatabase(string(cfg.Database.Device), cfg.Matrix.ServerName)
+	deviceDB, err := devices.NewDatabase(tracers, string(cfg.Database.Device), cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("startup: failed to create device database with data source %s : %s", cfg.Database.Device, err)
 	}
 
-	adb, err := accounts.NewDatabase(string(cfg.Database.Account), cfg.Matrix.ServerName)
+	adb, err := accounts.NewDatabase(tracers, string(cfg.Database.Account), cfg.Matrix.ServerName)
 	if err != nil {
 		log.Panicf("startup: failed to create account database with data source %s : %s", cfg.Database.Account, err)
 	}
@@ -92,7 +96,7 @@ func main() {
 		}).Panic("Failed to setup kafka consumers")
 	}
 
-	roomConsumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, n, db, queryAPI)
+	roomConsumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, n, db, queryAPI, opentracing.GlobalTracer())
 	if err = roomConsumer.Start(); err != nil {
 		log.Panicf("startup: failed to start room server consumer: %s", err)
 	}
@@ -104,7 +108,7 @@ func main() {
 	log.Info("Starting sync server on ", cfg.Listen.SyncAPI)
 
 	api := mux.NewRouter()
-	routing.Setup(api, sync.NewRequestPool(db, n, adb), db, deviceDB)
+	routing.Setup(api, sync.NewRequestPool(db, n, adb), db, deviceDB, opentracing.GlobalTracer())
 	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
 
 	log.Fatal(http.ListenAndServe(string(cfg.Listen.SyncAPI), nil))
diff --git a/src/github.com/matrix-org/dendrite/common/config/config.go b/src/github.com/matrix-org/dendrite/common/config/config.go
index 3c488f4e..83c0f3d0 100644
--- a/src/github.com/matrix-org/dendrite/common/config/config.go
+++ b/src/github.com/matrix-org/dendrite/common/config/config.go
@@ -19,7 +19,6 @@ import (
 	"crypto/sha256"
 	"encoding/pem"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"path/filepath"
 	"strings"
@@ -27,12 +26,10 @@ import (
 
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/gomatrixserverlib"
-	"github.com/sirupsen/logrus"
 	"golang.org/x/crypto/ed25519"
 	"gopkg.in/yaml.v2"
 
 	jaegerconfig "github.com/uber/jaeger-client-go/config"
-	jaegermetrics "github.com/uber/jaeger-lib/metrics"
 )
 
 // Version is the current version of the config format.
@@ -514,25 +511,3 @@ func (config *Dendrite) RoomServerURL() string {
 	// internet for an internal API.
 	return "http://" + string(config.Listen.RoomServer)
 }
-
-// SetupTracing configures the opentracing using the supplied configuration.
-func (config *Dendrite) SetupTracing(serviceName string) (closer io.Closer, err error) {
-	return config.Tracing.Jaeger.InitGlobalTracer(
-		serviceName,
-		jaegerconfig.Logger(logrusLogger{logrus.StandardLogger()}),
-		jaegerconfig.Metrics(jaegermetrics.NullFactory),
-	)
-}
-
-// logrusLogger is a small wrapper that implements jaeger.Logger using logrus.
-type logrusLogger struct {
-	l *logrus.Logger
-}
-
-func (l logrusLogger) Error(msg string) {
-	l.l.Error(msg)
-}
-
-func (l logrusLogger) Infof(msg string, args ...interface{}) {
-	l.l.Infof(msg, args...)
-}
diff --git a/src/github.com/matrix-org/dendrite/common/httpapi.go b/src/github.com/matrix-org/dendrite/common/httpapi.go
index 5a6fcef0..9cdffe0d 100644
--- a/src/github.com/matrix-org/dendrite/common/httpapi.go
+++ b/src/github.com/matrix-org/dendrite/common/httpapi.go
@@ -14,7 +14,7 @@ import (
 )
 
 // MakeAuthAPI turns a util.JSONRequestHandler function into an http.Handler which checks the access token in the request.
-func MakeAuthAPI(metricsName string, deviceDB auth.DeviceDatabase, f func(*http.Request, *authtypes.Device) util.JSONResponse) http.Handler {
+func MakeAuthAPI(tracer opentracing.Tracer, metricsName string, deviceDB auth.DeviceDatabase, f func(*http.Request, *authtypes.Device) util.JSONResponse) http.Handler {
 	h := func(req *http.Request) util.JSONResponse {
 		device, resErr := auth.VerifyAccessToken(req, deviceDB)
 		if resErr != nil {
@@ -22,15 +22,15 @@ func MakeAuthAPI(metricsName string, deviceDB auth.DeviceDatabase, f func(*http.
 		}
 		return f(req, device)
 	}
-	return MakeExternalAPI(metricsName, h)
+	return MakeExternalAPI(tracer, metricsName, h)
 }
 
 // MakeExternalAPI turns a util.JSONRequestHandler function into an http.Handler.
 // This is used for APIs that are called from the internet.
-func MakeExternalAPI(metricsName string, f func(*http.Request) util.JSONResponse) http.Handler {
+func MakeExternalAPI(tracer opentracing.Tracer, metricsName string, f func(*http.Request) util.JSONResponse) http.Handler {
 	h := util.MakeJSONAPI(util.NewJSONRequestHandler(f))
 	withSpan := func(w http.ResponseWriter, req *http.Request) {
-		span := opentracing.StartSpan(metricsName)
+		span := tracer.StartSpan(metricsName)
 		defer span.Finish()
 		req = req.WithContext(opentracing.ContextWithSpan(req.Context(), span))
 		h.ServeHTTP(w, req)
@@ -43,11 +43,10 @@ func MakeExternalAPI(metricsName string, f func(*http.Request) util.JSONResponse
 // This is used for APIs that are internal to dendrite.
 // If we are passed a tracing context in the request headers then we use that
 // as the parent of any tracing spans we create.
-func MakeInternalAPI(metricsName string, f func(*http.Request) util.JSONResponse) http.Handler {
+func MakeInternalAPI(tracer opentracing.Tracer, metricsName string, f func(*http.Request) util.JSONResponse) http.Handler {
 	h := util.MakeJSONAPI(util.NewJSONRequestHandler(f))
 	withSpan := func(w http.ResponseWriter, req *http.Request) {
 		carrier := opentracing.HTTPHeadersCarrier(req.Header)
-		tracer := opentracing.GlobalTracer()
 		clientContext, err := tracer.Extract(opentracing.HTTPHeaders, carrier)
 		var span opentracing.Span
 		if err == nil {
@@ -67,6 +66,7 @@ func MakeInternalAPI(metricsName string, f func(*http.Request) util.JSONResponse
 
 // MakeFedAPI makes an http.Handler that checks matrix federation authentication.
 func MakeFedAPI(
+	tracer opentracing.Tracer,
 	metricsName string,
 	serverName gomatrixserverlib.ServerName,
 	keyRing gomatrixserverlib.KeyRing,
@@ -81,7 +81,7 @@ func MakeFedAPI(
 		}
 		return f(req, fedReq)
 	}
-	return MakeExternalAPI(metricsName, h)
+	return MakeExternalAPI(tracer, metricsName, h)
 }
 
 // SetupHTTPAPI registers an HTTP API mux under /api and sets up a metrics
diff --git a/src/github.com/matrix-org/dendrite/common/keydb/keydb.go b/src/github.com/matrix-org/dendrite/common/keydb/keydb.go
index 8d2be24d..3cf2a191 100644
--- a/src/github.com/matrix-org/dendrite/common/keydb/keydb.go
+++ b/src/github.com/matrix-org/dendrite/common/keydb/keydb.go
@@ -16,8 +16,8 @@ package keydb
 
 import (
 	"context"
-	"database/sql"
 
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/gomatrixserverlib"
 )
 
@@ -31,8 +31,8 @@ type Database struct {
 // It creates the necessary tables if they don't already exist.
 // It prepares all the SQL statements that it will use.
 // Returns an error if there was a problem talking to the database.
-func NewDatabase(dataSourceName string) (*Database, error) {
-	db, err := sql.Open("postgres", dataSourceName)
+func NewDatabase(tracers *common.Tracers, dataSourceName string) (*Database, error) {
+	db, err := common.OpenPostgresWithTracing(tracers, "keys", dataSourceName)
 	if err != nil {
 		return nil, err
 	}
diff --git a/src/github.com/matrix-org/dendrite/common/sql.go b/src/github.com/matrix-org/dendrite/common/sql.go
index f3de66f1..436a6977 100644
--- a/src/github.com/matrix-org/dendrite/common/sql.go
+++ b/src/github.com/matrix-org/dendrite/common/sql.go
@@ -16,6 +16,13 @@ package common
 
 import (
 	"database/sql"
+	"fmt"
+
+	"github.com/matrix-org/util"
+
+	"github.com/gchaincl/sqlhooks"
+	"github.com/gchaincl/sqlhooks/hooks/othooks"
+	"github.com/lib/pq"
 )
 
 // A Transaction is something that can be committed or rolledback.
@@ -66,3 +73,18 @@ func TxStmt(transaction *sql.Tx, statement *sql.Stmt) *sql.Stmt {
 	}
 	return statement
 }
+
+// OpenPostgresWithTracing creates a new DB instance where calls will be
+// traced with the given tracer
+func OpenPostgresWithTracing(tracers *Tracers, databaseName, connstr string) (*sql.DB, error) {
+	tracer := tracers.SetupNewTracer("sql: " + databaseName)
+
+	hooks := othooks.New(tracer)
+
+	// This is a hack to get around the fact that you can't directly open
+	// a sql.DB with a given driver, you *have* to register it.
+	registrationName := fmt.Sprintf("postgres-ot-%s", util.RandomString(5))
+	sql.Register(registrationName, sqlhooks.Wrap(&pq.Driver{}, hooks))
+
+	return sql.Open(registrationName, connstr)
+}
diff --git a/src/github.com/matrix-org/dendrite/common/tracers.go b/src/github.com/matrix-org/dendrite/common/tracers.go
new file mode 100644
index 00000000..ae28c117
--- /dev/null
+++ b/src/github.com/matrix-org/dendrite/common/tracers.go
@@ -0,0 +1,103 @@
+// Copyright 2017 Vector Creations Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package common
+
+import (
+	"io"
+
+	"github.com/matrix-org/dendrite/common/config"
+	"github.com/opentracing/opentracing-go"
+	"github.com/sirupsen/logrus"
+	jaegerconfig "github.com/uber/jaeger-client-go/config"
+	jaegermetrics "github.com/uber/jaeger-lib/metrics"
+)
+
+type Tracers struct {
+	cfg     *config.Dendrite
+	closers []io.Closer
+}
+
+func NoopTracers() *Tracers {
+	return &Tracers{}
+}
+
+func NewTracers(cfg *config.Dendrite) *Tracers {
+	return &Tracers{
+		cfg: cfg,
+	}
+}
+
+func (t *Tracers) InitGlobalTracer(serviceName string) error {
+	if t.cfg == nil {
+		return nil
+	}
+
+	// Set up GlobalTracer
+	closer, err := t.cfg.Tracing.Jaeger.InitGlobalTracer(
+		serviceName,
+		jaegerconfig.Logger(logrusLogger{logrus.StandardLogger()}),
+		jaegerconfig.Metrics(jaegermetrics.NullFactory),
+	)
+
+	if err != nil {
+		return err
+	}
+
+	t.closers = append(t.closers, closer)
+
+	return nil
+}
+
+// SetupTracing configures the opentracing using the supplied configuration.
+func (t *Tracers) SetupNewTracer(serviceName string) opentracing.Tracer {
+	if t.cfg == nil {
+		return opentracing.NoopTracer{}
+	}
+
+	tracer, closer, err := t.cfg.Tracing.Jaeger.New(
+		serviceName,
+		jaegerconfig.Logger(logrusLogger{logrus.StandardLogger()}),
+		jaegerconfig.Metrics(jaegermetrics.NullFactory),
+	)
+
+	if err != nil {
+		logrus.Panicf("Failed to create new tracer %s: %s", serviceName, err)
+	}
+
+	t.closers = append(t.closers, closer)
+
+	return tracer
+}
+
+func (t *Tracers) Close() error {
+	for _, c := range t.closers {
+		c.Close() // nolint: errcheck
+	}
+
+	return nil
+}
+
+// logrusLogger is a small wrapper that implements jaeger.Logger using logrus.
+type logrusLogger struct {
+	l *logrus.Logger
+}
+
+func (l logrusLogger) Error(msg string) {
+	l.l.Error(msg)
+}
+
+func (l logrusLogger) Infof(msg string, args ...interface{}) {
+	l.l.Infof(msg, args...)
+}
diff --git a/src/github.com/matrix-org/dendrite/federationapi/routing/routing.go b/src/github.com/matrix-org/dendrite/federationapi/routing/routing.go
index a1e2dc2e..d1db5d41 100644
--- a/src/github.com/matrix-org/dendrite/federationapi/routing/routing.go
+++ b/src/github.com/matrix-org/dendrite/federationapi/routing/routing.go
@@ -26,6 +26,7 @@ import (
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 const (
@@ -43,11 +44,12 @@ func Setup(
 	keys gomatrixserverlib.KeyRing,
 	federation *gomatrixserverlib.FederationClient,
 	accountDB *accounts.Database,
+	tracer opentracing.Tracer,
 ) {
 	v2keysmux := apiMux.PathPrefix(pathPrefixV2Keys).Subrouter()
 	v1fedmux := apiMux.PathPrefix(pathPrefixV1Federation).Subrouter()
 
-	localKeys := common.MakeExternalAPI("localkeys", func(req *http.Request) util.JSONResponse {
+	localKeys := common.MakeExternalAPI(tracer, "localkeys", func(req *http.Request) util.JSONResponse {
 		return LocalKeys(cfg)
 	})
 
@@ -59,7 +61,7 @@ func Setup(
 	v2keysmux.Handle("/server/", localKeys).Methods("GET")
 
 	v1fedmux.Handle("/send/{txnID}/", common.MakeFedAPI(
-		"federation_send", cfg.Matrix.ServerName, keys,
+		tracer, "federation_send", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			vars := mux.Vars(httpReq)
 			return Send(
@@ -70,7 +72,7 @@ func Setup(
 	)).Methods("PUT", "OPTIONS")
 
 	v1fedmux.Handle("/invite/{roomID}/{eventID}", common.MakeFedAPI(
-		"federation_invite", cfg.Matrix.ServerName, keys,
+		tracer, "federation_invite", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			vars := mux.Vars(httpReq)
 			return Invite(
@@ -80,14 +82,15 @@ func Setup(
 		},
 	)).Methods("PUT", "OPTIONS")
 
-	v1fedmux.Handle("/3pid/onbind", common.MakeExternalAPI("3pid_onbind",
+	v1fedmux.Handle("/3pid/onbind", common.MakeExternalAPI(
+		tracer, "3pid_onbind",
 		func(req *http.Request) util.JSONResponse {
 			return CreateInvitesFrom3PIDInvites(req, query, cfg, producer, federation, accountDB)
 		},
 	)).Methods("POST", "OPTIONS")
 
 	v1fedmux.Handle("/exchange_third_party_invite/{roomID}", common.MakeFedAPI(
-		"exchange_third_party_invite", cfg.Matrix.ServerName, keys,
+		tracer, "exchange_third_party_invite", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			vars := mux.Vars(httpReq)
 			return ExchangeThirdPartyInvite(
@@ -97,7 +100,7 @@ func Setup(
 	)).Methods("PUT", "OPTIONS")
 
 	v1fedmux.Handle("/event/{eventID}", common.MakeFedAPI(
-		"federation_get_event", cfg.Matrix.ServerName, keys,
+		tracer, "federation_get_event", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			vars := mux.Vars(httpReq)
 			return GetEvent(
@@ -107,7 +110,7 @@ func Setup(
 	)).Methods("GET")
 
 	v1fedmux.Handle("/query/directory/", common.MakeFedAPI(
-		"federation_query_room_alias", cfg.Matrix.ServerName, keys,
+		tracer, "federation_query_room_alias", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			return RoomAliasToID(
 				httpReq, federation, cfg, aliasAPI,
@@ -116,7 +119,7 @@ func Setup(
 	)).Methods("GET")
 
 	v1fedmux.Handle("/query/profile", common.MakeFedAPI(
-		"federation_query_profile", cfg.Matrix.ServerName, keys,
+		tracer, "federation_query_profile", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			return GetProfile(
 				httpReq, accountDB, cfg,
@@ -125,7 +128,7 @@ func Setup(
 	)).Methods("GET")
 
 	v1fedmux.Handle("/make_join/{roomID}/{userID}", common.MakeFedAPI(
-		"federation_make_join", cfg.Matrix.ServerName, keys,
+		tracer, "federation_make_join", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			vars := mux.Vars(httpReq)
 			roomID := vars["roomID"]
@@ -137,7 +140,7 @@ func Setup(
 	)).Methods("GET")
 
 	v1fedmux.Handle("/send_join/{roomID}/{userID}", common.MakeFedAPI(
-		"federation_send_join", cfg.Matrix.ServerName, keys,
+		tracer, "federation_send_join", cfg.Matrix.ServerName, keys,
 		func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
 			vars := mux.Vars(httpReq)
 			roomID := vars["roomID"]
@@ -149,7 +152,7 @@ func Setup(
 	)).Methods("PUT")
 
 	v1fedmux.Handle("/version", common.MakeExternalAPI(
-		"federation_version",
+		tracer, "federation_version",
 		func(httpReq *http.Request) util.JSONResponse {
 			return Version()
 		},
diff --git a/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go
index 5e856ebb..2b551f6c 100644
--- a/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go
@@ -26,6 +26,7 @@ import (
 	"github.com/matrix-org/dendrite/federationsender/types"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
 	log "github.com/sirupsen/logrus"
 	sarama "gopkg.in/Shopify/sarama.v1"
 )
@@ -36,6 +37,7 @@ type OutputRoomEventConsumer struct {
 	db                 *storage.Database
 	queues             *queue.OutgoingQueues
 	query              api.RoomserverQueryAPI
+	tracer             opentracing.Tracer
 }
 
 // NewOutputRoomEventConsumer creates a new OutputRoomEventConsumer. Call Start() to begin consuming from room servers.
@@ -45,6 +47,7 @@ func NewOutputRoomEventConsumer(
 	queues *queue.OutgoingQueues,
 	store *storage.Database,
 	queryAPI api.RoomserverQueryAPI,
+	tracer opentracing.Tracer,
 ) *OutputRoomEventConsumer {
 	consumer := common.ContinualConsumer{
 		Topic:          string(cfg.Kafka.Topics.OutputRoomEvent),
@@ -56,6 +59,7 @@ func NewOutputRoomEventConsumer(
 		db:                 store,
 		queues:             queues,
 		query:              queryAPI,
+		tracer:             tracer,
 	}
 	consumer.ProcessMessage = s.onMessage
 
@@ -86,7 +90,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
-	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	ctx, span := output.StartSpanAndReplaceContext(context.Background(), s.tracer)
 	defer span.Finish()
 
 	ev := &output.NewRoomEvent.Event
diff --git a/src/github.com/matrix-org/dendrite/federationsender/storage/storage.go b/src/github.com/matrix-org/dendrite/federationsender/storage/storage.go
index e84d639d..9a6ef449 100644
--- a/src/github.com/matrix-org/dendrite/federationsender/storage/storage.go
+++ b/src/github.com/matrix-org/dendrite/federationsender/storage/storage.go
@@ -31,10 +31,10 @@ type Database struct {
 }
 
 // NewDatabase opens a new database
-func NewDatabase(dataSourceName string) (*Database, error) {
+func NewDatabase(tracers *common.Tracers, dataSourceName string) (*Database, error) {
 	var result Database
 	var err error
-	if result.db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if result.db, err = common.OpenPostgresWithTracing(tracers, "federationsender", dataSourceName); err != nil {
 		return nil, err
 	}
 	if err = result.prepare(); err != nil {
diff --git a/src/github.com/matrix-org/dendrite/mediaapi/routing/routing.go b/src/github.com/matrix-org/dendrite/mediaapi/routing/routing.go
index 608136f4..ec8ee7ac 100644
--- a/src/github.com/matrix-org/dendrite/mediaapi/routing/routing.go
+++ b/src/github.com/matrix-org/dendrite/mediaapi/routing/routing.go
@@ -18,6 +18,7 @@ import (
 	"net/http"
 
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	opentracing "github.com/opentracing/opentracing-go"
 
 	"github.com/gorilla/mux"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
@@ -39,6 +40,7 @@ func Setup(
 	db *storage.Database,
 	deviceDB *devices.Database,
 	client *gomatrixserverlib.Client,
+	tracer opentracing.Tracer,
 ) {
 	r0mux := apiMux.PathPrefix(pathPrefixR0).Subrouter()
 
@@ -47,6 +49,7 @@ func Setup(
 	}
 
 	r0mux.Handle("/upload", common.MakeAuthAPI(
+		tracer,
 		"upload",
 		deviceDB,
 		func(req *http.Request, _ *authtypes.Device) util.JSONResponse {
@@ -73,6 +76,8 @@ func makeDownloadAPI(
 	activeRemoteRequests *types.ActiveRemoteRequests,
 	activeThumbnailGeneration *types.ActiveThumbnailGeneration,
 ) http.HandlerFunc {
+	// TODO: Add opentracing.
+
 	return prometheus.InstrumentHandler(name, http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		req = util.RequestWithLogging(req)
 
diff --git a/src/github.com/matrix-org/dendrite/mediaapi/storage/storage.go b/src/github.com/matrix-org/dendrite/mediaapi/storage/storage.go
index bef134a9..d1bde27d 100644
--- a/src/github.com/matrix-org/dendrite/mediaapi/storage/storage.go
+++ b/src/github.com/matrix-org/dendrite/mediaapi/storage/storage.go
@@ -18,8 +18,7 @@ import (
 	"context"
 	"database/sql"
 
-	// Import the postgres database driver.
-	_ "github.com/lib/pq"
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/mediaapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -31,10 +30,10 @@ type Database struct {
 }
 
 // Open opens a postgres database.
-func Open(dataSourceName string) (*Database, error) {
+func Open(tracers *common.Tracers, dataSourceName string) (*Database, error) {
 	var d Database
 	var err error
-	if d.db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if d.db, err = common.OpenPostgresWithTracing(tracers, "media", dataSourceName); err != nil {
 		return nil, err
 	}
 	if err = d.statements.prepare(d.db); err != nil {
diff --git a/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go
index 3a83ba67..23cf1d6a 100644
--- a/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/publicroomsapi/consumers/roomserver.go
@@ -22,6 +22,7 @@ import (
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dendrite/publicroomsapi/storage"
 	"github.com/matrix-org/dendrite/roomserver/api"
+	opentracing "github.com/opentracing/opentracing-go"
 	log "github.com/sirupsen/logrus"
 	sarama "gopkg.in/Shopify/sarama.v1"
 )
@@ -31,6 +32,7 @@ type OutputRoomEventConsumer struct {
 	roomServerConsumer *common.ContinualConsumer
 	db                 *storage.PublicRoomsServerDatabase
 	query              api.RoomserverQueryAPI
+	tracer             opentracing.Tracer
 }
 
 // NewOutputRoomEventConsumer creates a new OutputRoomEventConsumer. Call Start() to begin consuming from room servers.
@@ -39,6 +41,7 @@ func NewOutputRoomEventConsumer(
 	kafkaConsumer sarama.Consumer,
 	store *storage.PublicRoomsServerDatabase,
 	queryAPI api.RoomserverQueryAPI,
+	tracer opentracing.Tracer,
 ) *OutputRoomEventConsumer {
 	consumer := common.ContinualConsumer{
 		Topic:          string(cfg.Kafka.Topics.OutputRoomEvent),
@@ -49,6 +52,7 @@ func NewOutputRoomEventConsumer(
 		roomServerConsumer: &consumer,
 		db:                 store,
 		query:              queryAPI,
+		tracer:             tracer,
 	}
 	consumer.ProcessMessage = s.onMessage
 
@@ -77,7 +81,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
-	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	ctx, span := output.StartSpanAndReplaceContext(context.Background(), s.tracer)
 	defer span.Finish()
 
 	ev := output.NewRoomEvent.Event
diff --git a/src/github.com/matrix-org/dendrite/publicroomsapi/routing/routing.go b/src/github.com/matrix-org/dendrite/publicroomsapi/routing/routing.go
index 6270b311..d58874f8 100644
--- a/src/github.com/matrix-org/dendrite/publicroomsapi/routing/routing.go
+++ b/src/github.com/matrix-org/dendrite/publicroomsapi/routing/routing.go
@@ -24,27 +24,33 @@ import (
 	"github.com/matrix-org/dendrite/publicroomsapi/directory"
 	"github.com/matrix-org/dendrite/publicroomsapi/storage"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 const pathPrefixR0 = "/_matrix/client/r0"
 
 // Setup configures the given mux with publicroomsapi server listeners
-func Setup(apiMux *mux.Router, deviceDB *devices.Database, publicRoomsDB *storage.PublicRoomsServerDatabase) {
+func Setup(
+	apiMux *mux.Router,
+	deviceDB *devices.Database,
+	publicRoomsDB *storage.PublicRoomsServerDatabase,
+	tracer opentracing.Tracer,
+) {
 	r0mux := apiMux.PathPrefix(pathPrefixR0).Subrouter()
 	r0mux.Handle("/directory/list/room/{roomID}",
-		common.MakeExternalAPI("directory_list", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "directory_list", func(req *http.Request) util.JSONResponse {
 			vars := mux.Vars(req)
 			return directory.GetVisibility(req, publicRoomsDB, vars["roomID"])
 		}),
 	).Methods("GET", "OPTIONS")
 	r0mux.Handle("/directory/list/room/{roomID}",
-		common.MakeAuthAPI("directory_list", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+		common.MakeAuthAPI(tracer, "directory_list", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 			vars := mux.Vars(req)
 			return directory.SetVisibility(req, publicRoomsDB, vars["roomID"])
 		}),
 	).Methods("PUT", "OPTIONS")
 	r0mux.Handle("/publicRooms",
-		common.MakeExternalAPI("public_rooms", func(req *http.Request) util.JSONResponse {
+		common.MakeExternalAPI(tracer, "public_rooms", func(req *http.Request) util.JSONResponse {
 			return directory.GetPublicRooms(req, publicRoomsDB)
 		}),
 	).Methods("GET", "POST", "OPTIONS")
diff --git a/src/github.com/matrix-org/dendrite/publicroomsapi/storage/storage.go b/src/github.com/matrix-org/dendrite/publicroomsapi/storage/storage.go
index eab27041..527db3ef 100644
--- a/src/github.com/matrix-org/dendrite/publicroomsapi/storage/storage.go
+++ b/src/github.com/matrix-org/dendrite/publicroomsapi/storage/storage.go
@@ -35,10 +35,10 @@ type PublicRoomsServerDatabase struct {
 type attributeValue interface{}
 
 // NewPublicRoomsServerDatabase creates a new public rooms server database.
-func NewPublicRoomsServerDatabase(dataSourceName string) (*PublicRoomsServerDatabase, error) {
+func NewPublicRoomsServerDatabase(tracers *common.Tracers, dataSourceName string) (*PublicRoomsServerDatabase, error) {
 	var db *sql.DB
 	var err error
-	if db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if db, err = common.OpenPostgresWithTracing(tracers, "publicrooms", dataSourceName); err != nil {
 		return nil, err
 	}
 	partitions := common.PartitionOffsetStatements{}
diff --git a/src/github.com/matrix-org/dendrite/roomserver/alias/alias.go b/src/github.com/matrix-org/dendrite/roomserver/alias/alias.go
index 7f41b462..253c21ca 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/alias/alias.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/alias/alias.go
@@ -26,6 +26,7 @@ import (
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 // RoomserverAliasAPIDatabase has the storage APIs needed to implement the alias API.
@@ -213,10 +214,10 @@ func (r *RoomserverAliasAPI) sendUpdatedAliasesEvent(
 }
 
 // SetupHTTP adds the RoomserverAliasAPI handlers to the http.ServeMux.
-func (r *RoomserverAliasAPI) SetupHTTP(servMux *http.ServeMux) {
+func (r *RoomserverAliasAPI) SetupHTTP(servMux *http.ServeMux, tracer opentracing.Tracer) {
 	servMux.Handle(
 		api.RoomserverSetRoomAliasPath,
-		common.MakeInternalAPI("setRoomAlias", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "setRoomAlias", func(req *http.Request) util.JSONResponse {
 			var request api.SetRoomAliasRequest
 			var response api.SetRoomAliasResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -230,7 +231,7 @@ func (r *RoomserverAliasAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverGetAliasRoomIDPath,
-		common.MakeInternalAPI("getAliasRoomID", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "getAliasRoomID", func(req *http.Request) util.JSONResponse {
 			var request api.GetAliasRoomIDRequest
 			var response api.GetAliasRoomIDResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -244,7 +245,7 @@ func (r *RoomserverAliasAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverRemoveRoomAliasPath,
-		common.MakeInternalAPI("removeRoomAlias", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "removeRoomAlias", func(req *http.Request) util.JSONResponse {
 			var request api.RemoveRoomAliasRequest
 			var response api.RemoveRoomAliasResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
diff --git a/src/github.com/matrix-org/dendrite/roomserver/api/output.go b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
index 4f35dbbc..c63bf4a7 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/api/output.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/api/output.go
@@ -69,9 +69,8 @@ func (o *OutputEvent) AddSpanFromContext(ctx context.Context) error {
 // StartSpanAndReplaceContext produces a context and opentracing span from the
 // info embedded in OutputEvent
 func (o *OutputEvent) StartSpanAndReplaceContext(
-	ctx context.Context,
+	ctx context.Context, tracer opentracing.Tracer,
 ) (context.Context, opentracing.Span) {
-	tracer := opentracing.GlobalTracer()
 	producerContext, err := tracer.Extract(opentracing.TextMap, o.OpentracingCarrier)
 
 	var span opentracing.Span
diff --git a/src/github.com/matrix-org/dendrite/roomserver/input/input.go b/src/github.com/matrix-org/dendrite/roomserver/input/input.go
index 253ef9ff..e7f042db 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/input/input.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/input/input.go
@@ -23,6 +23,7 @@ import (
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/roomserver/api"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 	sarama "gopkg.in/Shopify/sarama.v1"
 )
 
@@ -72,9 +73,9 @@ func (r *RoomserverInputAPI) InputRoomEvents(
 }
 
 // SetupHTTP adds the RoomserverInputAPI handlers to the http.ServeMux.
-func (r *RoomserverInputAPI) SetupHTTP(servMux *http.ServeMux) {
+func (r *RoomserverInputAPI) SetupHTTP(servMux *http.ServeMux, tracer opentracing.Tracer) {
 	servMux.Handle(api.RoomserverInputRoomEventsPath,
-		common.MakeInternalAPI("inputRoomEvents", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "inputRoomEvents", func(req *http.Request) util.JSONResponse {
 			var request api.InputRoomEventsRequest
 			var response api.InputRoomEventsResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -87,3 +88,29 @@ func (r *RoomserverInputAPI) SetupHTTP(servMux *http.ServeMux) {
 		}),
 	)
 }
+
+type InProcessRoomServerInput struct {
+	db     RoomserverInputAPI
+	tracer opentracing.Tracer
+}
+
+func NewInProcessRoomServerInput(db RoomserverInputAPI, tracer opentracing.Tracer) *InProcessRoomServerInput {
+	return &InProcessRoomServerInput{
+		db: db, tracer: tracer,
+	}
+}
+
+func (r *InProcessRoomServerInput) InputRoomEvents(
+	ctx context.Context,
+	request *api.InputRoomEventsRequest,
+	response *api.InputRoomEventsResponse,
+) error {
+	span := r.tracer.StartSpan(
+		"InputRoomEvents",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return r.db.InputRoomEvents(ctx, request, response)
+}
diff --git a/src/github.com/matrix-org/dendrite/roomserver/query/query.go b/src/github.com/matrix-org/dendrite/roomserver/query/query.go
index 28432787..928e4fb5 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/query/query.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/query/query.go
@@ -25,6 +25,7 @@ import (
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 // RoomserverQueryAPIEventDB has a convenience API to fetch events directly by
@@ -522,10 +523,10 @@ func getAuthChain(
 
 // SetupHTTP adds the RoomserverQueryAPI handlers to the http.ServeMux.
 // nolint: gocyclo
-func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
+func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux, tracer opentracing.Tracer) {
 	servMux.Handle(
 		api.RoomserverQueryLatestEventsAndStatePath,
-		common.MakeInternalAPI("queryLatestEventsAndState", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryLatestEventsAndState", func(req *http.Request) util.JSONResponse {
 			var request api.QueryLatestEventsAndStateRequest
 			var response api.QueryLatestEventsAndStateResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -539,7 +540,7 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverQueryStateAfterEventsPath,
-		common.MakeInternalAPI("queryStateAfterEvents", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryStateAfterEvents", func(req *http.Request) util.JSONResponse {
 			var request api.QueryStateAfterEventsRequest
 			var response api.QueryStateAfterEventsResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -553,7 +554,7 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverQueryEventsByIDPath,
-		common.MakeInternalAPI("queryEventsByID", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryEventsByID", func(req *http.Request) util.JSONResponse {
 			var request api.QueryEventsByIDRequest
 			var response api.QueryEventsByIDResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -567,7 +568,7 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverQueryMembershipsForRoomPath,
-		common.MakeInternalAPI("queryMembershipsForRoom", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryMembershipsForRoom", func(req *http.Request) util.JSONResponse {
 			var request api.QueryMembershipsForRoomRequest
 			var response api.QueryMembershipsForRoomResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -581,7 +582,7 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverQueryInvitesForUserPath,
-		common.MakeInternalAPI("queryInvitesForUser", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryInvitesForUser", func(req *http.Request) util.JSONResponse {
 			var request api.QueryInvitesForUserRequest
 			var response api.QueryInvitesForUserResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -595,7 +596,7 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverQueryServerAllowedToSeeEventPath,
-		common.MakeInternalAPI("queryServerAllowedToSeeEvent", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryServerAllowedToSeeEvent", func(req *http.Request) util.JSONResponse {
 			var request api.QueryServerAllowedToSeeEventRequest
 			var response api.QueryServerAllowedToSeeEventResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -609,7 +610,7 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 	)
 	servMux.Handle(
 		api.RoomserverQueryStateAndAuthChainPath,
-		common.MakeInternalAPI("queryStateAndAuthChain", func(req *http.Request) util.JSONResponse {
+		common.MakeInternalAPI(tracer, "queryStateAndAuthChain", func(req *http.Request) util.JSONResponse {
 			var request api.QueryStateAndAuthChainRequest
 			var response api.QueryStateAndAuthChainResponse
 			if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
@@ -622,3 +623,127 @@ func (r *RoomserverQueryAPI) SetupHTTP(servMux *http.ServeMux) {
 		}),
 	)
 }
+
+type InProcessRoomServerQueryAPI struct {
+	db     RoomserverQueryAPI
+	tracer opentracing.Tracer
+}
+
+func NewInProcessRoomServerQueryAPI(db RoomserverQueryAPI, tracer opentracing.Tracer) InProcessRoomServerQueryAPI {
+	return InProcessRoomServerQueryAPI{
+		db:     db,
+		tracer: tracer,
+	}
+}
+
+// QueryLatestEventsAndState implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryLatestEventsAndState(
+	ctx context.Context,
+	request *api.QueryLatestEventsAndStateRequest,
+	response *api.QueryLatestEventsAndStateResponse,
+) error {
+	span := h.tracer.StartSpan(
+		"QueryLatestEventsAndState",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryLatestEventsAndState(ctx, request, response)
+}
+
+// QueryStateAfterEvents implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryStateAfterEvents(
+	ctx context.Context,
+	request *api.QueryStateAfterEventsRequest,
+	response *api.QueryStateAfterEventsResponse,
+) error {
+	span := h.tracer.StartSpan(
+		"QueryStateAfterEvents",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryStateAfterEvents(ctx, request, response)
+}
+
+// QueryEventsByID implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryEventsByID(
+	ctx context.Context,
+	request *api.QueryEventsByIDRequest,
+	response *api.QueryEventsByIDResponse,
+) error {
+	span := h.tracer.StartSpan(
+		"QueryEventsByID",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryEventsByID(ctx, request, response)
+}
+
+// QueryMembershipsForRoom implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryMembershipsForRoom(
+	ctx context.Context,
+	request *api.QueryMembershipsForRoomRequest,
+	response *api.QueryMembershipsForRoomResponse,
+) error {
+	span := h.tracer.StartSpan(
+		"QueryMembershipsForRoom",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryMembershipsForRoom(ctx, request, response)
+}
+
+// QueryInvitesForUser implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryInvitesForUser(
+	ctx context.Context,
+	request *api.QueryInvitesForUserRequest,
+	response *api.QueryInvitesForUserResponse,
+) error {
+	span := h.tracer.StartSpan(
+		"QueryInvitesForUser",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryInvitesForUser(ctx, request, response)
+}
+
+// QueryServerAllowedToSeeEvent implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryServerAllowedToSeeEvent(
+	ctx context.Context,
+	request *api.QueryServerAllowedToSeeEventRequest,
+	response *api.QueryServerAllowedToSeeEventResponse,
+) (err error) {
+	span := h.tracer.StartSpan(
+		"QueryServerAllowedToSeeEvent",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryServerAllowedToSeeEvent(ctx, request, response)
+}
+
+// QueryStateAndAuthChain implements RoomserverQueryAPI
+func (h *InProcessRoomServerQueryAPI) QueryStateAndAuthChain(
+	ctx context.Context,
+	request *api.QueryStateAndAuthChainRequest,
+	response *api.QueryStateAndAuthChainResponse,
+) error {
+	span := h.tracer.StartSpan(
+		"QueryStateAndAuthChain",
+		opentracing.ChildOf(opentracing.SpanFromContext(ctx).Context()),
+	)
+	defer span.Finish()
+	ctx = opentracing.ContextWithSpan(ctx, span)
+
+	return h.db.QueryStateAndAuthChain(ctx, request, response)
+}
diff --git a/src/github.com/matrix-org/dendrite/roomserver/storage/storage.go b/src/github.com/matrix-org/dendrite/roomserver/storage/storage.go
index b94036c9..f4cec010 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/storage/storage.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/storage/storage.go
@@ -18,8 +18,7 @@ import (
 	"context"
 	"database/sql"
 
-	// Import the postgres database driver.
-	_ "github.com/lib/pq"
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/roomserver/types"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -31,10 +30,10 @@ type Database struct {
 }
 
 // Open a postgres database.
-func Open(dataSourceName string) (*Database, error) {
+func Open(tracers *common.Tracers, dataSourceName string) (*Database, error) {
 	var d Database
 	var err error
-	if d.db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if d.db, err = common.OpenPostgresWithTracing(tracers, "roomserver", dataSourceName); err != nil {
 		return nil, err
 	}
 	if err = d.statements.prepare(d.db); err != nil {
diff --git a/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go b/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go
index a02c4be4..f220a9d0 100644
--- a/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go
+++ b/src/github.com/matrix-org/dendrite/syncapi/consumers/roomserver.go
@@ -19,6 +19,8 @@ import (
 	"encoding/json"
 	"fmt"
 
+	"github.com/opentracing/opentracing-go"
+
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/common/config"
 	"github.com/matrix-org/dendrite/roomserver/api"
@@ -36,6 +38,7 @@ type OutputRoomEventConsumer struct {
 	db                 *storage.SyncServerDatabase
 	notifier           *sync.Notifier
 	query              api.RoomserverQueryAPI
+	tracer             opentracing.Tracer
 }
 
 // NewOutputRoomEventConsumer creates a new OutputRoomEventConsumer. Call Start() to begin consuming from room servers.
@@ -45,6 +48,7 @@ func NewOutputRoomEventConsumer(
 	n *sync.Notifier,
 	store *storage.SyncServerDatabase,
 	queryAPI api.RoomserverQueryAPI,
+	tracer opentracing.Tracer,
 ) *OutputRoomEventConsumer {
 
 	consumer := common.ContinualConsumer{
@@ -57,6 +61,7 @@ func NewOutputRoomEventConsumer(
 		db:                 store,
 		notifier:           n,
 		query:              queryAPI,
+		tracer:             tracer,
 	}
 	consumer.ProcessMessage = s.onMessage
 
@@ -80,7 +85,7 @@ func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
 		return nil
 	}
 
-	ctx, span := output.StartSpanAndReplaceContext(context.Background())
+	ctx, span := output.StartSpanAndReplaceContext(context.Background(), s.tracer)
 	defer span.Finish()
 
 	switch output.Type {
diff --git a/src/github.com/matrix-org/dendrite/syncapi/routing/routing.go b/src/github.com/matrix-org/dendrite/syncapi/routing/routing.go
index c080c852..6552847f 100644
--- a/src/github.com/matrix-org/dendrite/syncapi/routing/routing.go
+++ b/src/github.com/matrix-org/dendrite/syncapi/routing/routing.go
@@ -24,29 +24,33 @@ import (
 	"github.com/matrix-org/dendrite/syncapi/storage"
 	"github.com/matrix-org/dendrite/syncapi/sync"
 	"github.com/matrix-org/util"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 const pathPrefixR0 = "/_matrix/client/r0"
 
 // Setup configures the given mux with sync-server listeners
-func Setup(apiMux *mux.Router, srp *sync.RequestPool, syncDB *storage.SyncServerDatabase, deviceDB *devices.Database) {
+func Setup(
+	apiMux *mux.Router, srp *sync.RequestPool, syncDB *storage.SyncServerDatabase, deviceDB *devices.Database,
+	tracer opentracing.Tracer,
+) {
 	r0mux := apiMux.PathPrefix(pathPrefixR0).Subrouter()
 
-	r0mux.Handle("/sync", common.MakeAuthAPI("sync", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+	r0mux.Handle("/sync", common.MakeAuthAPI(tracer, "sync", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 		return srp.OnIncomingSyncRequest(req, device)
 	})).Methods("GET", "OPTIONS")
 
-	r0mux.Handle("/rooms/{roomID}/state", common.MakeAuthAPI("room_state", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+	r0mux.Handle("/rooms/{roomID}/state", common.MakeAuthAPI(tracer, "room_state", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 		vars := mux.Vars(req)
 		return OnIncomingStateRequest(req, syncDB, vars["roomID"])
 	})).Methods("GET", "OPTIONS")
 
-	r0mux.Handle("/rooms/{roomID}/state/{type}", common.MakeAuthAPI("room_state", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+	r0mux.Handle("/rooms/{roomID}/state/{type}", common.MakeAuthAPI(tracer, "room_state", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 		vars := mux.Vars(req)
 		return OnIncomingStateTypeRequest(req, syncDB, vars["roomID"], vars["type"], "")
 	})).Methods("GET", "OPTIONS")
 
-	r0mux.Handle("/rooms/{roomID}/state/{type}/{stateKey}", common.MakeAuthAPI("room_state", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+	r0mux.Handle("/rooms/{roomID}/state/{type}/{stateKey}", common.MakeAuthAPI(tracer, "room_state", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
 		vars := mux.Vars(req)
 		return OnIncomingStateTypeRequest(req, syncDB, vars["roomID"], vars["type"], vars["stateKey"])
 	})).Methods("GET", "OPTIONS")
diff --git a/src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go b/src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go
index 1a18d937..5aedec63 100644
--- a/src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go
+++ b/src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go
@@ -19,7 +19,7 @@ import (
 	"database/sql"
 	"fmt"
 	// Import the postgres database driver.
-	_ "github.com/lib/pq"
+
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/syncapi/types"
 	"github.com/matrix-org/gomatrixserverlib"
@@ -51,10 +51,10 @@ type SyncServerDatabase struct {
 }
 
 // NewSyncServerDatabase creates a new sync server database
-func NewSyncServerDatabase(dataSourceName string) (*SyncServerDatabase, error) {
+func NewSyncServerDatabase(tracers *common.Tracers, dataSourceName string) (*SyncServerDatabase, error) {
 	var d SyncServerDatabase
 	var err error
-	if d.db, err = sql.Open("postgres", dataSourceName); err != nil {
+	if d.db, err = common.OpenPostgresWithTracing(tracers, "sync", dataSourceName); err != nil {
 		return nil, err
 	}
 	if err = d.PartitionOffsetStatements.Prepare(d.db, "syncapi"); err != nil {
diff --git a/vendor/manifest b/vendor/manifest
index 830d3e2d..35d6aec7 100644
--- a/vendor/manifest
+++ b/vendor/manifest
@@ -77,6 +77,12 @@
 			"revision": "44cc805cf13205b55f69e14bcb69867d1ae92f98",
 			"branch": "master"
 		},
+		{
+			"importpath": "github.com/gchaincl/sqlhooks",
+			"repository": "https://github.com/gchaincl/sqlhooks",
+			"revision": "b4a12bad76664eae8012d196ed901f8fa8f87909",
+			"branch": "master"
+		},
 		{
 			"importpath": "github.com/golang/protobuf/proto",
 			"repository": "https://github.com/golang/protobuf",
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/CHANGELOG.md b/vendor/src/github.com/gchaincl/sqlhooks/CHANGELOG.md
new file mode 100644
index 00000000..74fc2786
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/CHANGELOG.md
@@ -0,0 +1,41 @@
+# Change Log
+
+## [Unreleased](https://github.com/gchaincl/sqlhooks/tree/HEAD)
+
+[Full Changelog](https://github.com/gchaincl/sqlhooks/compare/v1.0.0...HEAD)
+
+**Closed issues:**
+
+- Add Benchmarks [\#9](https://github.com/gchaincl/sqlhooks/issues/9)
+## [v1.0.0](https://github.com/gchaincl/sqlhooks/tree/v1.0.0) (2017-05-08)
+[Full Changelog](https://github.com/gchaincl/sqlhooks/compare/v0.4...v1.0.0)
+
+**Merged pull requests:**
+
+- Godoc [\#7](https://github.com/gchaincl/sqlhooks/pull/7) ([gchaincl](https://github.com/gchaincl))
+- Make covermode=count [\#6](https://github.com/gchaincl/sqlhooks/pull/6) ([gchaincl](https://github.com/gchaincl))
+- V1 [\#5](https://github.com/gchaincl/sqlhooks/pull/5) ([gchaincl](https://github.com/gchaincl))
+- Expose a WrapDriver function [\#4](https://github.com/gchaincl/sqlhooks/issues/4)
+- Implement new 1.8 interfaces [\#3](https://github.com/gchaincl/sqlhooks/issues/3)
+
+## [v0.4](https://github.com/gchaincl/sqlhooks/tree/v0.4) (2017-03-23)
+[Full Changelog](https://github.com/gchaincl/sqlhooks/compare/v0.3...v0.4)
+
+## [v0.3](https://github.com/gchaincl/sqlhooks/tree/v0.3) (2016-06-02)
+[Full Changelog](https://github.com/gchaincl/sqlhooks/compare/v0.2...v0.3)
+
+**Closed issues:**
+
+- Change Notifications [\#2](https://github.com/gchaincl/sqlhooks/issues/2)
+
+## [v0.2](https://github.com/gchaincl/sqlhooks/tree/v0.2) (2016-05-01)
+[Full Changelog](https://github.com/gchaincl/sqlhooks/compare/v0.1...v0.2)
+
+## [v0.1](https://github.com/gchaincl/sqlhooks/tree/v0.1) (2016-04-25)
+**Merged pull requests:**
+
+- Sqlite3 [\#1](https://github.com/gchaincl/sqlhooks/pull/1) ([gchaincl](https://github.com/gchaincl))
+
+
+
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
\ No newline at end of file
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/LICENSE b/vendor/src/github.com/gchaincl/sqlhooks/LICENSE
new file mode 100644
index 00000000..c3b88f7b
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Gustavo Chaín
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/README.md b/vendor/src/github.com/gchaincl/sqlhooks/README.md
new file mode 100644
index 00000000..4cc78c22
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/README.md
@@ -0,0 +1,82 @@
+# sqlhooks [![Build Status](https://travis-ci.org/gchaincl/sqlhooks.svg)](https://travis-ci.org/gchaincl/sqlhooks) [![Coverage Status](https://coveralls.io/repos/github/gchaincl/sqlhooks/badge.svg?branch=master)](https://coveralls.io/github/gchaincl/sqlhooks?branch=master) [![Go Report Card](https://goreportcard.com/badge/github.com/gchaincl/sqlhooks)](https://goreportcard.com/report/github.com/gchaincl/sqlhooks)
+
+Attach hooks to any database/sql driver.
+
+The purpose of sqlhooks is to provide a way to instrument your sql statements, making really easy to log queries or measure execution time without modifying your actual code.
+
+# Install
+```bash
+go get github.com/gchaincl/sqlhooks
+```
+
+## Breaking changes
+`V1` isn't backward compatible with previous versions, if you want to fetch old versions, you can get them from [gopkg.in](http://gopkg.in/)
+```bash
+go get gopkg.in/gchaincl/sqlhooks.v0
+```
+
+# Usage [![GoDoc](https://godoc.org/github.com/gchaincl/dotsql?status.svg)](https://godoc.org/github.com/gchaincl/sqlhooks)
+
+```go
+// This example shows how to instrument sql queries in order to display the time that they consume
+package main
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"time"
+
+	"github.com/gchaincl/sqlhooks"
+	"github.com/mattn/go-sqlite3"
+)
+
+// Hooks satisfies the sqlhook.Hooks interface
+type Hooks struct {}
+
+// Before hook will print the query with it's args and return the context with the timestamp
+func (h *Hooks) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	fmt.Printf("> %s %q", query, args)
+	return context.WithValue(ctx, "begin", time.Now()), nil
+}
+
+// After hook will get the timestamp registered on the Before hook and print the elapsed time
+func (h *Hooks) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	begin := ctx.Value("begin").(time.Time)
+	fmt.Printf(". took: %s\n", time.Since(begin))
+	return ctx, nil
+}
+
+func main() {
+	// First, register the wrapper
+	sql.Register("sqlite3WithHooks", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, &Hooks{}))
+
+	// Connect to the registered wrapped driver
+	db, _ := sql.Open("sqlite3WithHooks", ":memory:")
+
+	// Do you're stuff
+	db.Exec("CREATE TABLE t (id INTEGER, text VARCHAR(16))")
+	db.Exec("INSERT into t (text) VALUES(?), (?)", "foo", "bar")
+	db.Query("SELECT id, text FROM t")
+}
+
+/*
+Output should look like:
+> CREATE TABLE t (id INTEGER, text VARCHAR(16)) []. took: 121.238µs
+> INSERT into t (text) VALUES(?), (?) ["foo" "bar"]. took: 36.364µs
+> SELECT id, text FROM t []. took: 4.653µs
+*/
+```
+
+# Benchmarks
+```
+ go test -bench=. -benchmem
+ BenchmarkSQLite3/Without_Hooks-4                  200000              8572 ns/op             627 B/op         16 allocs/op
+ BenchmarkSQLite3/With_Hooks-4                     200000             10231 ns/op             738 B/op         18 allocs/op
+ BenchmarkMySQL/Without_Hooks-4                     10000            108421 ns/op             437 B/op         10 allocs/op
+ BenchmarkMySQL/With_Hooks-4                        10000            226085 ns/op             597 B/op         13 allocs/op
+ BenchmarkPostgres/Without_Hooks-4                  10000            125718 ns/op             649 B/op         17 allocs/op
+ BenchmarkPostgres/With_Hooks-4                      5000            354831 ns/op            1122 B/op         27 allocs/op
+ PASS
+ ok      github.com/gchaincl/sqlhooks    11.713s
+ ```
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/benchmark_test.go b/vendor/src/github.com/gchaincl/sqlhooks/benchmark_test.go
new file mode 100644
index 00000000..c2b30107
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/benchmark_test.go
@@ -0,0 +1,76 @@
+package sqlhooks
+
+import (
+	"database/sql"
+	"os"
+	"testing"
+
+	"github.com/go-sql-driver/mysql"
+	"github.com/lib/pq"
+	"github.com/mattn/go-sqlite3"
+	"github.com/stretchr/testify/require"
+)
+
+func init() {
+	hooks := &testHooks{}
+	hooks.noop()
+
+	sql.Register("sqlite3-benchmark", Wrap(&sqlite3.SQLiteDriver{}, hooks))
+	sql.Register("mysql-benchmark", Wrap(&mysql.MySQLDriver{}, hooks))
+	sql.Register("postgres-benchmark", Wrap(&pq.Driver{}, hooks))
+}
+
+func benchmark(b *testing.B, driver, dsn string) {
+	db, err := sql.Open(driver, dsn)
+	require.NoError(b, err)
+	defer db.Close()
+
+	var query = "SELECT 'hello'"
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		rows, err := db.Query(query)
+		require.NoError(b, err)
+		require.NoError(b, rows.Close())
+	}
+}
+
+func BenchmarkSQLite3(b *testing.B) {
+	b.Run("Without Hooks", func(b *testing.B) {
+		benchmark(b, "sqlite3", ":memory:")
+	})
+
+	b.Run("With Hooks", func(b *testing.B) {
+		benchmark(b, "sqlite3-benchmark", ":memory:")
+	})
+}
+
+func BenchmarkMySQL(b *testing.B) {
+	dsn := os.Getenv("SQLHOOKS_MYSQL_DSN")
+	if dsn == "" {
+		b.Skipf("SQLHOOKS_MYSQL_DSN not set")
+	}
+
+	b.Run("Without Hooks", func(b *testing.B) {
+		benchmark(b, "mysql", dsn)
+	})
+
+	b.Run("With Hooks", func(b *testing.B) {
+		benchmark(b, "mysql-benchmark", dsn)
+	})
+}
+
+func BenchmarkPostgres(b *testing.B) {
+	dsn := os.Getenv("SQLHOOKS_POSTGRES_DSN")
+	if dsn == "" {
+		b.Skipf("SQLHOOKS_POSTGRES_DSN not set")
+	}
+
+	b.Run("Without Hooks", func(b *testing.B) {
+		benchmark(b, "postgres", dsn)
+	})
+
+	b.Run("With Hooks", func(b *testing.B) {
+		benchmark(b, "postgres-benchmark", dsn)
+	})
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/doc.go b/vendor/src/github.com/gchaincl/sqlhooks/doc.go
new file mode 100644
index 00000000..a376ee0b
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/doc.go
@@ -0,0 +1,52 @@
+// package sqlhooks allows you to attach hooks to any database/sql driver.
+// The purpose of sqlhooks is to provide a way to instrument your sql statements, making really easy to log queries or measure execution time without modifying your actual code.
+
+// This example shows how to instrument sql queries in order to display the time that they consume
+// package main
+//
+// import (
+// 	"context"
+// 	"database/sql"
+// 	"fmt"
+// 	"time"
+//
+// 	"github.com/gchaincl/sqlhooks"
+// 	"github.com/mattn/go-sqlite3"
+// )
+//
+// // Hooks satisfies the sqlhook.Hooks interface
+// type Hooks struct {}
+//
+// // Before hook will print the query with it's args and return the context with the timestamp
+// func (h *Hooks) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+// 	fmt.Printf("> %s %q", query, args)
+// 	return context.WithValue(ctx, "begin", time.Now()), nil
+// }
+//
+// // After hook will get the timestamp registered on the Before hook and print the elapsed time
+// func (h *Hooks) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+// 	begin := ctx.Value("begin").(time.Time)
+// 	fmt.Printf(". took: %s\n", time.Since(begin))
+// 	return ctx, nil
+// }
+//
+// func main() {
+// 	// First, register the wrapper
+// 	sql.Register("sqlite3WithHooks", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, &Hooks{}))
+//
+// 	// Connect to the registered wrapped driver
+// 	db, _ := sql.Open("sqlite3WithHooks", ":memory:")
+//
+// 	// Do you're stuff
+// 	db.Exec("CREATE TABLE t (id INTEGER, text VARCHAR(16))")
+// 	db.Exec("INSERT into t (text) VALUES(?), (?)", "foo", "bar")
+// 	db.Query("SELECT id, text FROM t")
+// }
+//
+// /*
+// Output should look like:
+// > CREATE TABLE t (id INTEGER, text VARCHAR(16)) []. took: 121.238µs
+// > INSERT into t (text) VALUES(?), (?) ["foo" "bar"]. took: 36.364µs
+// > SELECT id, text FROM t []. took: 4.653µs
+// */
+package sqlhooks
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/example_test.go b/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/example_test.go
new file mode 100644
index 00000000..d2462a1a
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/example_test.go
@@ -0,0 +1,17 @@
+package loghooks
+
+import (
+	"database/sql"
+
+	"github.com/gchaincl/sqlhooks"
+	sqlite3 "github.com/mattn/go-sqlite3"
+)
+
+func Example() {
+	driver := sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, New())
+	sql.Register("sqlite3-logger", driver)
+	db, _ := sql.Open("sqlite3-logger", ":memory:")
+
+	// This query will output logs
+	db.Query("SELECT 1+1")
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/examples/main.go b/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/examples/main.go
new file mode 100644
index 00000000..00944a59
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/examples/main.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+	"database/sql"
+	"log"
+
+	"github.com/gchaincl/sqlhooks"
+	"github.com/gchaincl/sqlhooks/hooks/loghooks"
+	"github.com/mattn/go-sqlite3"
+)
+
+func main() {
+	sql.Register("sqlite3log", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, loghooks.New()))
+	db, err := sql.Open("sqlite3log", ":memory:")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if _, err := db.Exec("CREATE TABLE users(ID int, name text)"); err != nil {
+		log.Fatal(err)
+	}
+
+	if _, err := db.Exec(`INSERT INTO users (id, name) VALUES(?, ?)`, 1, "gus"); err != nil {
+		log.Fatal(err)
+	}
+
+	if _, err := db.Query(`SELECT id, name FROM users`); err != nil {
+		log.Fatal(err)
+	}
+
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/loghooks.go b/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/loghooks.go
new file mode 100644
index 00000000..17c00364
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/hooks/loghooks/loghooks.go
@@ -0,0 +1,30 @@
+package loghooks
+
+import (
+	"context"
+	"log"
+	"os"
+	"time"
+)
+
+type logger interface {
+	Printf(string, ...interface{})
+}
+
+type Hook struct {
+	log logger
+}
+
+func New() *Hook {
+	return &Hook{
+		log: log.New(os.Stderr, "", log.LstdFlags),
+	}
+}
+func (h *Hook) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	return context.WithValue(ctx, "started", time.Now()), nil
+}
+
+func (h *Hook) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	h.log.Printf("Query: `%s`, Args: `%q`. took: %s", query, args, time.Since(ctx.Value("started").(time.Time)))
+	return ctx, nil
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/examples/main.go b/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/examples/main.go
new file mode 100644
index 00000000..28750ac8
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/examples/main.go
@@ -0,0 +1,39 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"log"
+
+	"github.com/gchaincl/sqlhooks"
+	"github.com/gchaincl/sqlhooks/hooks/othooks"
+	"github.com/mattn/go-sqlite3"
+	"github.com/opentracing/opentracing-go"
+)
+
+func main() {
+	tracer := opentracing.GlobalTracer()
+	hooks := othooks.New(tracer)
+	sql.Register("sqlite3ot", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, hooks))
+	db, err := sql.Open("sqlite3ot", ":memory:")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	span := tracer.StartSpan("sql")
+	defer span.Finish()
+	ctx := opentracing.ContextWithSpan(context.Background(), span)
+
+	if _, err := db.ExecContext(ctx, "CREATE TABLE users(ID int, name text)"); err != nil {
+		log.Fatal(err)
+	}
+
+	if _, err := db.ExecContext(ctx, `INSERT INTO users (id, name) VALUES(?, ?)`, 1, "gus"); err != nil {
+		log.Fatal(err)
+	}
+
+	if _, err := db.QueryContext(ctx, `SELECT id, name FROM users`); err != nil {
+		log.Fatal(err)
+	}
+
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks.go b/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks.go
new file mode 100644
index 00000000..e83b2128
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks.go
@@ -0,0 +1,35 @@
+package othooks
+
+import "context"
+import "github.com/opentracing/opentracing-go"
+
+import "github.com/opentracing/opentracing-go/ext"
+
+type Hook struct {
+	tracer opentracing.Tracer
+}
+
+func New(tracer opentracing.Tracer) *Hook {
+	return &Hook{tracer: tracer}
+}
+
+func (h *Hook) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	parent := opentracing.SpanFromContext(ctx)
+	if parent == nil {
+		return ctx, nil
+	}
+
+	span := h.tracer.StartSpan("sql", opentracing.ChildOf(parent.Context()))
+	ext.DBStatement.Set(span, query)
+
+	return opentracing.ContextWithSpan(ctx, span), nil
+}
+
+func (h *Hook) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	span := opentracing.SpanFromContext(ctx)
+	if span != nil {
+		defer span.Finish()
+	}
+
+	return ctx, nil
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks_test.go b/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks_test.go
new file mode 100644
index 00000000..fb7fb61b
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/hooks/othooks/othooks_test.go
@@ -0,0 +1,74 @@
+package othooks
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	"github.com/gchaincl/sqlhooks"
+	sqlite3 "github.com/mattn/go-sqlite3"
+	opentracing "github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go/mocktracer"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+var (
+	tracer *mocktracer.MockTracer
+)
+
+func init() {
+	tracer = mocktracer.New()
+	driver := sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, New(tracer))
+	sql.Register("ot", driver)
+}
+
+func TestSpansAreRecorded(t *testing.T) {
+	db, err := sql.Open("ot", ":memory:")
+	require.NoError(t, err)
+	defer db.Close()
+	tracer.Reset()
+
+	parent := tracer.StartSpan("parent")
+	ctx := opentracing.ContextWithSpan(context.Background(), parent)
+
+	{
+		rows, err := db.QueryContext(ctx, "SELECT 1+?", "1")
+		require.NoError(t, err)
+		rows.Close()
+	}
+
+	{
+		rows, err := db.QueryContext(ctx, "SELECT 1+?", "1")
+		require.NoError(t, err)
+		rows.Close()
+	}
+
+	parent.Finish()
+
+	spans := tracer.FinishedSpans()
+	require.Len(t, spans, 3)
+
+	span := spans[1]
+	assert.Equal(t, "sql", span.OperationName)
+
+	logFields := span.Logs()[0].Fields
+	assert.Equal(t, "query", logFields[0].Key)
+	assert.Equal(t, "SELECT 1+?", logFields[0].ValueString)
+	assert.Equal(t, "args", logFields[1].Key)
+	assert.Equal(t, "[1]", logFields[1].ValueString)
+	assert.NotEmpty(t, span.FinishTime)
+}
+
+func TesNoSpansAreRecorded(t *testing.T) {
+	db, err := sql.Open("ot", ":memory:")
+	require.NoError(t, err)
+	defer db.Close()
+	tracer.Reset()
+
+	rows, err := db.QueryContext(context.Background(), "SELECT 1")
+	require.NoError(t, err)
+	rows.Close()
+
+	assert.Empty(t, tracer.FinishedSpans())
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks.go b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks.go
new file mode 100644
index 00000000..740853d0
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks.go
@@ -0,0 +1,277 @@
+package sqlhooks
+
+import (
+	"context"
+	"errors"
+
+	"database/sql/driver"
+)
+
+// Hook is the hook callback signature
+type Hook func(ctx context.Context, query string, args ...interface{}) (context.Context, error)
+
+// Hooks instances may be passed to Wrap() to define an instrumented driver
+type Hooks interface {
+	Before(ctx context.Context, query string, args ...interface{}) (context.Context, error)
+	After(ctx context.Context, query string, args ...interface{}) (context.Context, error)
+}
+
+// Driver implements a database/sql/driver.Driver
+type Driver struct {
+	driver.Driver
+	hooks Hooks
+}
+
+// Open opens a connection
+func (drv *Driver) Open(name string) (driver.Conn, error) {
+	conn, err := drv.Driver.Open(name)
+	if err != nil {
+		return conn, err
+	}
+
+	wrapped := &Conn{conn, drv.hooks}
+	if isExecer(conn) {
+		// If conn implements an Execer interface, return a driver.Conn which
+		// also implements Execer
+		return &ExecerContext{wrapped}, nil
+	}
+	return wrapped, nil
+}
+
+// Conn implements a database/sql.driver.Conn
+type Conn struct {
+	Conn  driver.Conn
+	hooks Hooks
+}
+
+func (conn *Conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
+	var (
+		stmt driver.Stmt
+		err  error
+	)
+
+	if c, ok := conn.Conn.(driver.ConnPrepareContext); ok {
+		stmt, err = c.PrepareContext(ctx, query)
+	} else {
+		stmt, err = conn.Prepare(query)
+	}
+
+	if err != nil {
+		return stmt, err
+	}
+
+	return &Stmt{stmt, conn.hooks, query}, nil
+}
+
+func (conn *Conn) Prepare(query string) (driver.Stmt, error) { return conn.Conn.Prepare(query) }
+func (conn *Conn) Close() error                              { return conn.Conn.Close() }
+func (conn *Conn) Begin() (driver.Tx, error)                 { return conn.Conn.Begin() }
+
+func (conn *Conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
+	return conn.Conn.(driver.ConnBeginTx).BeginTx(ctx, opts)
+}
+
+// ExecerContext implements a database/sql.driver.ExecerContext
+type ExecerContext struct {
+	*Conn
+}
+
+func isExecer(conn driver.Conn) bool {
+	switch conn.(type) {
+	case driver.ExecerContext:
+		return true
+	case driver.Execer:
+		return true
+	default:
+		return false
+	}
+}
+
+func (conn *ExecerContext) execContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
+	switch c := conn.Conn.Conn.(type) {
+	case driver.ExecerContext:
+		return c.ExecContext(ctx, query, args)
+	case driver.Execer:
+		dargs, err := namedValueToValue(args)
+		if err != nil {
+			return nil, err
+		}
+		return c.Exec(query, dargs)
+	default:
+		// This should not happen
+		return nil, errors.New("ExecerContext created for a non Execer driver.Conn")
+	}
+}
+
+func (conn *ExecerContext) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
+	var err error
+
+	list := namedToInterface(args)
+
+	// Exec `Before` Hooks
+	if ctx, err = conn.hooks.Before(ctx, query, list...); err != nil {
+		return nil, err
+	}
+
+	results, err := conn.execContext(ctx, query, args)
+	if err != nil {
+		return results, err
+	}
+
+	if ctx, err = conn.hooks.After(ctx, query, list...); err != nil {
+		return nil, err
+	}
+
+	return results, err
+}
+
+func (conn *ExecerContext) Exec(query string, args []driver.Value) (driver.Result, error) {
+	// We have to implement Exec since it is required in the current version of
+	// Go for it to run ExecContext. From Go 10 it will be optional. However,
+	// this code should never run since database/sql always prefers to run
+	// ExecContext.
+	return nil, errors.New("Exec was called when ExecContext was implemented")
+}
+
+// Stmt implements a database/sql/driver.Stmt
+type Stmt struct {
+	Stmt  driver.Stmt
+	hooks Hooks
+	query string
+}
+
+func (stmt *Stmt) execContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
+	if s, ok := stmt.Stmt.(driver.StmtExecContext); ok {
+		return s.ExecContext(ctx, args)
+	}
+
+	values := make([]driver.Value, len(args))
+	for _, arg := range args {
+		values[arg.Ordinal-1] = arg.Value
+	}
+
+	return stmt.Exec(values)
+}
+
+func (stmt *Stmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
+	var err error
+
+	list := namedToInterface(args)
+
+	// Exec `Before` Hooks
+	if ctx, err = stmt.hooks.Before(ctx, stmt.query, list...); err != nil {
+		return nil, err
+	}
+
+	results, err := stmt.execContext(ctx, args)
+	if err != nil {
+		return results, err
+	}
+
+	if ctx, err = stmt.hooks.After(ctx, stmt.query, list...); err != nil {
+		return nil, err
+	}
+
+	return results, err
+}
+
+func (stmt *Stmt) queryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
+	if s, ok := stmt.Stmt.(driver.StmtQueryContext); ok {
+		return s.QueryContext(ctx, args)
+	}
+
+	values := make([]driver.Value, len(args))
+	for _, arg := range args {
+		values[arg.Ordinal-1] = arg.Value
+	}
+	return stmt.Query(values)
+}
+
+func (stmt *Stmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
+	var err error
+
+	list := namedToInterface(args)
+
+	// Exec Before Hooks
+	if ctx, err = stmt.hooks.Before(ctx, stmt.query, list...); err != nil {
+		return nil, err
+	}
+
+	rows, err := stmt.queryContext(ctx, args)
+	if err != nil {
+		return rows, err
+	}
+
+	if ctx, err = stmt.hooks.After(ctx, stmt.query, list...); err != nil {
+		return nil, err
+	}
+
+	return rows, err
+}
+
+func (stmt *Stmt) Close() error                                    { return stmt.Stmt.Close() }
+func (stmt *Stmt) NumInput() int                                   { return stmt.Stmt.NumInput() }
+func (stmt *Stmt) Exec(args []driver.Value) (driver.Result, error) { return stmt.Stmt.Exec(args) }
+func (stmt *Stmt) Query(args []driver.Value) (driver.Rows, error)  { return stmt.Stmt.Query(args) }
+
+// Wrap is used to create a new instrumented driver, it takes a vendor specific driver, and a Hooks instance to produce a new driver instance.
+// It's usually used inside a sql.Register() statement
+func Wrap(driver driver.Driver, hooks Hooks) driver.Driver {
+	return &Driver{driver, hooks}
+}
+
+func namedToInterface(args []driver.NamedValue) []interface{} {
+	list := make([]interface{}, len(args))
+	for i, a := range args {
+		list[i] = a.Value
+	}
+	return list
+}
+
+// namedValueToValue copied from database/sql
+func namedValueToValue(named []driver.NamedValue) ([]driver.Value, error) {
+	dargs := make([]driver.Value, len(named))
+	for n, param := range named {
+		if len(param.Name) > 0 {
+			return nil, errors.New("sql: driver does not support the use of Named Parameters")
+		}
+		dargs[n] = param.Value
+	}
+	return dargs, nil
+}
+
+/*
+type hooks struct {
+}
+
+func (h *hooks) Before(ctx context.Context, query string, args ...interface{}) error {
+	log.Printf("before> ctx = %+v, q=%s, args = %+v\n", ctx, query, args)
+	return nil
+}
+
+func (h *hooks) After(ctx context.Context, query string, args ...interface{}) error {
+	log.Printf("after>  ctx = %+v, q=%s, args = %+v\n", ctx, query, args)
+	return nil
+}
+
+func main() {
+	sql.Register("sqlite3-proxy", Wrap(&sqlite3.SQLiteDriver{}, &hooks{}))
+	db, err := sql.Open("sqlite3-proxy", ":memory:")
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	if _, ok := driver.Stmt(&Stmt{}).(driver.StmtExecContext); !ok {
+		panic("NOPE")
+	}
+
+	if _, err := db.Exec("CREATE table users(id int)"); err != nil {
+		log.Printf("|err| = %+v\n", err)
+	}
+
+	if _, err := db.QueryContext(context.Background(), "SELECT * FROM users WHERE id = ?", 1); err != nil {
+		log.Printf("err = %+v\n", err)
+	}
+
+}
+*/
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_mysql_test.go b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_mysql_test.go
new file mode 100644
index 00000000..6dd1af2e
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_mysql_test.go
@@ -0,0 +1,56 @@
+package sqlhooks
+
+import (
+	"database/sql"
+	"os"
+	"testing"
+
+	"github.com/go-sql-driver/mysql"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func setUpMySQL(t *testing.T, dsn string) {
+	db, err := sql.Open("mysql", dsn)
+	require.NoError(t, err)
+	require.NoError(t, db.Ping())
+	defer db.Close()
+
+	_, err = db.Exec("CREATE table IF NOT EXISTS users(id int, name text)")
+	require.NoError(t, err)
+}
+
+func TestMySQL(t *testing.T) {
+	dsn := os.Getenv("SQLHOOKS_MYSQL_DSN")
+	if dsn == "" {
+		t.Skipf("SQLHOOKS_MYSQL_DSN not set")
+	}
+
+	setUpMySQL(t, dsn)
+
+	s := newSuite(t, &mysql.MySQLDriver{}, dsn)
+
+	s.TestHooksExecution(t, "SELECT * FROM users WHERE id = ?", 1)
+	s.TestHooksArguments(t, "SELECT * FROM users WHERE id = ? AND name = ?", int64(1), "Gus")
+	s.TestHooksErrors(t, "SELECT 1+1")
+
+	t.Run("DBWorks", func(t *testing.T) {
+		s.hooks.noop()
+		if _, err := s.db.Exec("DELETE FROM users"); err != nil {
+			t.Fatal(err)
+		}
+
+		stmt, err := s.db.Prepare("INSERT INTO users (id, name) VALUES(?, ?)")
+		require.NoError(t, err)
+		for i := range [5]struct{}{} {
+			_, err := stmt.Exec(i, "gus")
+			require.NoError(t, err)
+		}
+
+		var count int
+		require.NoError(t,
+			s.db.QueryRow("SELECT COUNT(*) FROM users").Scan(&count),
+		)
+		assert.Equal(t, 5, count)
+	})
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_postgres_test.go b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_postgres_test.go
new file mode 100644
index 00000000..7cfbea0a
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_postgres_test.go
@@ -0,0 +1,56 @@
+package sqlhooks
+
+import (
+	"database/sql"
+	"os"
+	"testing"
+
+	"github.com/lib/pq"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func setUpPostgres(t *testing.T, dsn string) {
+	db, err := sql.Open("postgres", dsn)
+	require.NoError(t, err)
+	require.NoError(t, db.Ping())
+	defer db.Close()
+
+	_, err = db.Exec("CREATE table IF NOT EXISTS users(id int, name text)")
+	require.NoError(t, err)
+}
+
+func TestPostgres(t *testing.T) {
+	dsn := os.Getenv("SQLHOOKS_POSTGRES_DSN")
+	if dsn == "" {
+		t.Skipf("SQLHOOKS_POSTGRES_DSN not set")
+	}
+
+	setUpPostgres(t, dsn)
+
+	s := newSuite(t, &pq.Driver{}, dsn)
+
+	s.TestHooksExecution(t, "SELECT * FROM users WHERE id = $1", 1)
+	s.TestHooksArguments(t, "SELECT * FROM users WHERE id = $1 AND name = $2", int64(1), "Gus")
+	s.TestHooksErrors(t, "SELECT 1+1")
+
+	t.Run("DBWorks", func(t *testing.T) {
+		s.hooks.noop()
+		if _, err := s.db.Exec("DELETE FROM users"); err != nil {
+			t.Fatal(err)
+		}
+
+		stmt, err := s.db.Prepare("INSERT INTO users (id, name) VALUES($1, $2)")
+		require.NoError(t, err)
+		for i := range [5]struct{}{} {
+			_, err := stmt.Exec(i, "gus")
+			require.NoError(t, err)
+		}
+
+		var count int
+		require.NoError(t,
+			s.db.QueryRow("SELECT COUNT(*) FROM users").Scan(&count),
+		)
+		assert.Equal(t, 5, count)
+	})
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_sqlite3_test.go b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_sqlite3_test.go
new file mode 100644
index 00000000..bf910c8b
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_sqlite3_test.go
@@ -0,0 +1,54 @@
+package sqlhooks
+
+import (
+	"database/sql"
+	"os"
+	"testing"
+	"time"
+
+	sqlite3 "github.com/mattn/go-sqlite3"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func setUp(t *testing.T) func() {
+	dbName := "sqlite3test.db"
+
+	db, err := sql.Open("sqlite3", dbName)
+	require.NoError(t, err)
+	defer db.Close()
+
+	_, err = db.Exec("CREATE table users(id int, name text)")
+	require.NoError(t, err)
+
+	return func() { os.Remove(dbName) }
+}
+
+func TestSQLite3(t *testing.T) {
+	defer setUp(t)()
+	s := newSuite(t, &sqlite3.SQLiteDriver{}, "sqlite3test.db")
+
+	s.TestHooksExecution(t, "SELECT * FROM users WHERE id = ?", 1)
+	s.TestHooksArguments(t, "SELECT * FROM users WHERE id = ? AND name = ?", int64(1), "Gus")
+	s.TestHooksErrors(t, "SELECT 1+1")
+
+	t.Run("DBWorks", func(t *testing.T) {
+		s.hooks.noop()
+		if _, err := s.db.Exec("DELETE FROM users"); err != nil {
+			t.Fatal(err)
+		}
+
+		stmt, err := s.db.Prepare("INSERT INTO users (id, name) VALUES(?, ?)")
+		require.NoError(t, err)
+		for range [5]struct{}{} {
+			_, err := stmt.Exec(time.Now().UnixNano(), "gus")
+			require.NoError(t, err)
+		}
+
+		var count int
+		require.NoError(t,
+			s.db.QueryRow("SELECT COUNT(*) FROM users").Scan(&count),
+		)
+		assert.Equal(t, 5, count)
+	})
+}
diff --git a/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_test.go b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_test.go
new file mode 100644
index 00000000..f3c8bbc3
--- /dev/null
+++ b/vendor/src/github.com/gchaincl/sqlhooks/sqlhooks_test.go
@@ -0,0 +1,167 @@
+package sqlhooks
+
+import (
+	"context"
+	"database/sql"
+	"database/sql/driver"
+	"errors"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+type testHooks struct {
+	before Hook
+	after  Hook
+}
+
+func (h *testHooks) noop() {
+	noop := func(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+		return ctx, nil
+	}
+
+	h.before, h.after = noop, noop
+}
+
+func (h *testHooks) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	return h.before(ctx, query, args...)
+}
+
+func (h *testHooks) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	return h.after(ctx, query, args...)
+}
+
+type suite struct {
+	db    *sql.DB
+	hooks *testHooks
+}
+
+func newSuite(t *testing.T, driver driver.Driver, dsn string) *suite {
+	hooks := &testHooks{}
+	driverName := fmt.Sprintf("sqlhooks-%s", time.Now().String())
+	sql.Register(driverName, Wrap(driver, hooks))
+
+	db, err := sql.Open(driverName, dsn)
+	require.NoError(t, err)
+	require.NoError(t, db.Ping())
+
+	return &suite{db, hooks}
+}
+
+func (s *suite) TestHooksExecution(t *testing.T, query string, args ...interface{}) {
+	var before, after bool
+
+	s.hooks.before = func(ctx context.Context, q string, a ...interface{}) (context.Context, error) {
+		before = true
+		return ctx, nil
+	}
+	s.hooks.after = func(ctx context.Context, q string, a ...interface{}) (context.Context, error) {
+		after = true
+		return ctx, nil
+	}
+
+	t.Run("Query", func(t *testing.T) {
+		before, after = false, false
+		_, err := s.db.Query(query, args...)
+		require.NoError(t, err)
+		assert.True(t, before, "Before Hook did not run for query: "+query)
+		assert.True(t, after, "After Hook did not run for query:  "+query)
+	})
+
+	t.Run("QueryContext", func(t *testing.T) {
+		before, after = false, false
+		_, err := s.db.QueryContext(context.Background(), query, args...)
+		require.NoError(t, err)
+		assert.True(t, before, "Before Hook did not run for query: "+query)
+		assert.True(t, after, "After Hook did not run for query:  "+query)
+	})
+
+	t.Run("Exec", func(t *testing.T) {
+		before, after = false, false
+		_, err := s.db.Exec(query, args...)
+		require.NoError(t, err)
+		assert.True(t, before, "Before Hook did not run for query: "+query)
+		assert.True(t, after, "After Hook did not run for query:  "+query)
+	})
+
+	t.Run("ExecContext", func(t *testing.T) {
+		before, after = false, false
+		_, err := s.db.ExecContext(context.Background(), query, args...)
+		require.NoError(t, err)
+		assert.True(t, before, "Before Hook did not run for query: "+query)
+		assert.True(t, after, "After Hook did not run for query:  "+query)
+	})
+
+	t.Run("Statements", func(t *testing.T) {
+		before, after = false, false
+		stmt, err := s.db.Prepare(query)
+		require.NoError(t, err)
+
+		// Hooks just run when the stmt is executed (Query or Exec)
+		assert.False(t, before, "Before Hook run before execution: "+query)
+		assert.False(t, after, "After Hook run before execution:  "+query)
+
+		stmt.Query(args...)
+		assert.True(t, before, "Before Hook did not run for query: "+query)
+		assert.True(t, after, "After Hook did not run for query:  "+query)
+	})
+}
+
+func (s *suite) testHooksArguments(t *testing.T, query string, args ...interface{}) {
+	hook := func(ctx context.Context, q string, a ...interface{}) (context.Context, error) {
+		assert.Equal(t, query, q)
+		assert.Equal(t, args, a)
+		assert.Equal(t, "val", ctx.Value("key").(string))
+		return ctx, nil
+	}
+	s.hooks.before = hook
+	s.hooks.after = hook
+
+	ctx := context.WithValue(context.Background(), "key", "val")
+	{
+		_, err := s.db.QueryContext(ctx, query, args...)
+		require.NoError(t, err)
+	}
+
+	{
+		_, err := s.db.ExecContext(ctx, query, args...)
+		require.NoError(t, err)
+	}
+}
+
+func (s *suite) TestHooksArguments(t *testing.T, query string, args ...interface{}) {
+	t.Run("TestHooksArguments", func(t *testing.T) { s.testHooksArguments(t, query, args...) })
+}
+
+func (s *suite) testHooksErrors(t *testing.T, query string) {
+	boom := errors.New("boom")
+	s.hooks.before = func(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+		return ctx, boom
+	}
+
+	s.hooks.after = func(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+		assert.False(t, true, "this should not run")
+		return ctx, nil
+	}
+
+	_, err := s.db.Query(query)
+	assert.Equal(t, boom, err)
+}
+
+func (s *suite) TestHooksErrors(t *testing.T, query string) {
+	t.Run("TestHooksErrors", func(t *testing.T) { s.testHooksErrors(t, query) })
+}
+
+func TestNamedValueToValue(t *testing.T) {
+	named := []driver.NamedValue{
+		{Ordinal: 1, Value: "foo"},
+		{Ordinal: 2, Value: 42},
+	}
+	want := []driver.Value{"foo", 42}
+	dargs, err := namedValueToValue(named)
+	require.NoError(t, err)
+	assert.Equal(t, want, dargs)
+}