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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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24
internal/caching/cache_serverkeys.go
View file

@ -6,13 +6,6 @@ import (
"github.com/matrix-org/gomatrixserverlib"
)
const (
ServerKeyCacheName = "server_key"
ServerKeyCacheMaxEntries = 4096
ServerKeyCacheMutable = true
ServerKeyCacheMaxAge = CacheNoMaxAge
)
// ServerKeyCache contains the subset of functions needed for
// a server key cache.
type ServerKeyCache interface {
@ -34,18 +27,13 @@ func (c Caches) GetServerKey(
) (gomatrixserverlib.PublicKeyLookupResult, bool) {
key := fmt.Sprintf("%s/%s", request.ServerName, request.KeyID)
val, found := c.ServerKeys.Get(key)
if found && val != nil {
if keyLookupResult, ok := val.(gomatrixserverlib.PublicKeyLookupResult); ok {
if !keyLookupResult.WasValidAt(timestamp, true) {
// The key wasn't valid at the requested timestamp so don't
// return it. The caller will have to work out what to do.
c.ServerKeys.Unset(key)
return gomatrixserverlib.PublicKeyLookupResult{}, false
}
return keyLookupResult, true
}
if found && !val.WasValidAt(timestamp, true) {
// The key wasn't valid at the requested timestamp so don't
// return it. The caller will have to work out what to do.
c.ServerKeys.Unset(key)
return gomatrixserverlib.PublicKeyLookupResult{}, false
}
return gomatrixserverlib.PublicKeyLookupResult{}, false
return val, found
}
func (c Caches) StoreServerKey(