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Add prometheus metrics for destination queues, sync requests

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Squashed commit of the following:

commit 7ed1c6cfe67429dbe378a763d832c150eb0f781d
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Wed Dec 16 14:53:27 2020 +0000

    Updates

commit 8442099d08760b8d086e6d58f9f30284e378a2cd
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Wed Dec 16 14:43:18 2020 +0000

    Add some sync statistics

commit ffe2a11644ed3d5297d1775a680886c574143fdb
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Wed Dec 16 14:37:00 2020 +0000

    Fix backing off display

commit 27443a93855aa60a49806ecabbf9b09f818301bd
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Wed Dec 16 14:28:43 2020 +0000

    Add some destination queue metrics
This commit is contained in:
Neil Alexander 2020-12-16 15:02:39 +00:00
parent b891c00b09
commit 56b5847c74
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3 changed files with 70 additions and 0 deletions
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6
federationsender/queue/destinationqueue.go
View file

@ -242,6 +242,8 @@ func (oq *destinationQueue) backgroundSend() {
if !oq.running.CAS(false, true) {
return
}
destinationQueueRunning.Inc()
defer destinationQueueRunning.Dec()
defer oq.running.Store(false)
// Mark the queue as overflowed, so we will consult the database
@ -295,10 +297,14 @@ func (oq *destinationQueue) backgroundSend() {
// time.
duration := time.Until(*until)
log.Warnf("Backing off %q for %s", oq.destination, duration)
oq.backingOff.Store(true)
destinationQueueBackingOff.Inc()
select {
case <-time.After(duration):
case <-oq.interruptBackoff:
}
destinationQueueBackingOff.Dec()
oq.backingOff.Store(false)
}
// Work out which PDUs/EDUs to include in the next transaction.

33
federationsender/queue/queue.go
View file

@ -27,6 +27,7 @@ import (
"github.com/matrix-org/dendrite/federationsender/storage/shared"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/gomatrixserverlib"
"github.com/prometheus/client_golang/prometheus"
log "github.com/sirupsen/logrus"
"github.com/tidwall/gjson"
)
@ -45,6 +46,37 @@ type OutgoingQueues struct {
queues map[gomatrixserverlib.ServerName]*destinationQueue
}
func init() {
prometheus.MustRegister(
destinationQueueTotal, destinationQueueRunning,
destinationQueueBackingOff,
)
}
var destinationQueueTotal = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "dendrite",
Subsystem: "federationsender",
Name: "destination_queues_total",
},
)
var destinationQueueRunning = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "dendrite",
Subsystem: "federationsender",
Name: "destination_queues_running",
},
)
var destinationQueueBackingOff = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "dendrite",
Subsystem: "federationsender",
Name: "destination_queues_backing_off",
},
)
// NewOutgoingQueues makes a new OutgoingQueues
func NewOutgoingQueues(
db storage.Database,
@ -116,6 +148,7 @@ func (oqs *OutgoingQueues) getQueue(destination gomatrixserverlib.ServerName) *d
defer oqs.queuesMutex.Unlock()
oq := oqs.queues[destination]
if oq == nil {
destinationQueueTotal.Inc()
oq = &destinationQueue{
db: oqs.db,
rsAPI: oqs.rsAPI,