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Ristretto cache (#2563)

Browse source 
* Try Ristretto cache

* Tweak

* It's beautiful

* Update GMSL

* More strict keyable interface

* Fix that some more

* Make less panicky

* Don't enforce mutability checks for now

* Determine mutability using deep equality

* Tweaks

* Namespace keys

* Make federation caches mutable

* Update cost estimation, add metric

* Update GMSL

* Estimate cost for metrics better

* Reduce counters a bit

* Try caching events

* Some guards

* Try again

* Try this

* Use separate caches for hopefully better hash distribution

* Fix bug with admitting events into cache

* Try to fix bugs

* Check nil

* Try that again

* Preserve order jeezo this is messy

* thanks VS Code for doing exactly the wrong thing

* Try this again

* Be more specific

* aaaaargh

* One more time

* That might be better

* Stronger sorting

* Cache expiries, async publishing of EDUs

* Put it back

* Use a shared cache again

* Cost estimation fixes

* Update ristretto

* Reduce counters a bit

* Clean up a bit

* Update GMSL

* 1GB

* Configurable cache sizees

* Tweaks

* Add `config.DataUnit` for specifying friendly cache sizes

* Various tweaks

* Update GMSL

* Add back some lazy loading caching

* Include key in cost

* Include key in cost

* Tweak max age handling, config key name

* Only register prometheus metrics if requested

* Review comments @S7evinK

* Don't return errors when creating caches (it is better just to crash since otherwise we'll `nil`-pointer exception everywhere)

* Review comments

* Update sample configs

* Update GHA Workflow

* Update Complement images to Go 1.18

* Remove the cache test from the federation API as we no longer guarantee immediate cache admission

* Don't check the caches in the renewal test

* Possibly fix the upgrade tests

* Update to matrix-org/gomatrixserverlib#322

* Update documentation to refer to Go 1.18
This commit is contained in:
Neil Alexander 2022-07-11 14:31:31 +01:00 • committed by GitHub
parent eb8dc50a97
commit 3ea21273bc
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38 changed files with 603 additions and 764 deletions
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39
internal/caching/cache_federationevents.go
View file

@ -1,18 +1,9 @@
package caching
import (
"fmt"
"github.com/matrix-org/gomatrixserverlib"
)
const (
FederationEventCacheName = "federation_event"
FederationEventCacheMaxEntries = 256
FederationEventCacheMutable = true // to allow use of Unset only
FederationEventCacheMaxAge = CacheNoMaxAge
)
// FederationCache contains the subset of functions needed for
// a federation event cache.
type FederationCache interface {
@ -26,43 +17,25 @@ type FederationCache interface {
}
func (c Caches) GetFederationQueuedPDU(eventNID int64) (*gomatrixserverlib.HeaderedEvent, bool) {
key := fmt.Sprintf("%d", eventNID)
val, found := c.FederationEvents.Get(key)
if found && val != nil {
if event, ok := val.(*gomatrixserverlib.HeaderedEvent); ok {
return event, true
}
}
return nil, false
return c.FederationPDUs.Get(eventNID)
}
func (c Caches) StoreFederationQueuedPDU(eventNID int64, event *gomatrixserverlib.HeaderedEvent) {
key := fmt.Sprintf("%d", eventNID)
c.FederationEvents.Set(key, event)
c.FederationPDUs.Set(eventNID, event)
}
func (c Caches) EvictFederationQueuedPDU(eventNID int64) {
key := fmt.Sprintf("%d", eventNID)
c.FederationEvents.Unset(key)
c.FederationPDUs.Unset(eventNID)
}
func (c Caches) GetFederationQueuedEDU(eventNID int64) (*gomatrixserverlib.EDU, bool) {
key := fmt.Sprintf("%d", eventNID)
val, found := c.FederationEvents.Get(key)
if found && val != nil {
if event, ok := val.(*gomatrixserverlib.EDU); ok {
return event, true
}
}
return nil, false
return c.FederationEDUs.Get(eventNID)
}
func (c Caches) StoreFederationQueuedEDU(eventNID int64, event *gomatrixserverlib.EDU) {
key := fmt.Sprintf("%d", eventNID)
c.FederationEvents.Set(key, event)
c.FederationEDUs.Set(eventNID, event)
}
func (c Caches) EvictFederationQueuedEDU(eventNID int64) {
key := fmt.Sprintf("%d", eventNID)
c.FederationEvents.Unset(key)
c.FederationEDUs.Unset(eventNID)
}