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Add event state key cache (#2576)

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Neil Alexander 2022-07-19 12:15:48 +01:00 committed by GitHub
parent 583b8ea273
commit 5c01306bb5
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5 changed files with 58 additions and 15 deletions
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18
internal/caching/cache_eventstatekeys.go Normal file
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@ -0,0 +1,18 @@
package caching
import "github.com/matrix-org/dendrite/roomserver/types"
// EventStateKeyCache contains the subset of functions needed for
// a room event state key cache.
type EventStateKeyCache interface {
GetEventStateKey(eventStateKeyNID types.EventStateKeyNID) (string, bool)
StoreEventStateKey(eventStateKeyNID types.EventStateKeyNID, eventStateKey string)
}
func (c Caches) GetEventStateKey(eventStateKeyNID types.EventStateKeyNID) (string, bool) {
return c.RoomServerStateKeys.Get(eventStateKeyNID)
}
func (c Caches) StoreEventStateKey(eventStateKeyNID types.EventStateKeyNID, eventStateKey string) {
c.RoomServerStateKeys.Set(eventStateKeyNID, eventStateKey)
}

5
internal/caching/cache_roomservernids.go
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@ -9,6 +9,7 @@ type RoomServerCaches interface {
RoomVersionCache
RoomInfoCache
RoomServerEventsCache
EventStateKeyCache
}
// RoomServerNIDsCache contains the subset of functions needed for
@ -19,9 +20,9 @@ type RoomServerNIDsCache interface {
}
func (c Caches) GetRoomServerRoomID(roomNID types.RoomNID) (string, bool) {
return c.RoomServerRoomIDs.Get(int64(roomNID))
return c.RoomServerRoomIDs.Get(roomNID)
}
func (c Caches) StoreRoomServerRoomID(roomNID types.RoomNID, roomID string) {
c.RoomServerRoomIDs.Set(int64(roomNID), roomID)
c.RoomServerRoomIDs.Set(roomNID, roomID)
}

23
internal/caching/caches.go
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@ -23,16 +23,17 @@ import (
// different implementations as long as they satisfy the Cache
// interface.
type Caches struct {
RoomVersions Cache[string, gomatrixserverlib.RoomVersion] // room ID -> room version
ServerKeys Cache[string, gomatrixserverlib.PublicKeyLookupResult] // server name -> server keys
RoomServerRoomNIDs Cache[string, types.RoomNID] // room ID -> room NID
RoomServerRoomIDs Cache[int64, string] // room NID -> room ID
RoomServerEvents Cache[int64, *gomatrixserverlib.Event] // event NID -> event
RoomInfos Cache[string, *types.RoomInfo] // room ID -> room info
FederationPDUs Cache[int64, *gomatrixserverlib.HeaderedEvent] // queue NID -> PDU
FederationEDUs Cache[int64, *gomatrixserverlib.EDU] // queue NID -> EDU
SpaceSummaryRooms Cache[string, gomatrixserverlib.MSC2946SpacesResponse] // room ID -> space response
LazyLoading Cache[lazyLoadingCacheKey, string] // composite key -> event ID
RoomVersions Cache[string, gomatrixserverlib.RoomVersion] // room ID -> room version
ServerKeys Cache[string, gomatrixserverlib.PublicKeyLookupResult] // server name -> server keys
RoomServerRoomNIDs Cache[string, types.RoomNID] // room ID -> room NID
RoomServerRoomIDs Cache[types.RoomNID, string] // room NID -> room ID
RoomServerEvents Cache[int64, *gomatrixserverlib.Event] // event NID -> event
RoomServerStateKeys Cache[types.EventStateKeyNID, string] // event NID -> event state key
RoomInfos Cache[string, *types.RoomInfo] // room ID -> room info
FederationPDUs Cache[int64, *gomatrixserverlib.HeaderedEvent] // queue NID -> PDU
FederationEDUs Cache[int64, *gomatrixserverlib.EDU] // queue NID -> EDU
SpaceSummaryRooms Cache[string, gomatrixserverlib.MSC2946SpacesResponse] // room ID -> space response
LazyLoading Cache[lazyLoadingCacheKey, string] // composite key -> event ID
}
// Cache is the interface that an implementation must satisfy.
@ -44,7 +45,7 @@ type Cache[K keyable, T any] interface {
type keyable interface {
// from https://github.com/dgraph-io/ristretto/blob/8e850b710d6df0383c375ec6a7beae4ce48fc8d5/z/z.go#L34
uint64 | string | []byte | byte | int | int32 | uint32 | int64 | lazyLoadingCacheKey
~uint64 | ~string | []byte | byte | ~int | ~int32 | ~uint32 | ~int64 | lazyLoadingCacheKey
}
type costable interface {

8
internal/caching/impl_ristretto.go
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@ -40,6 +40,7 @@ const (
federationEDUsCache
spaceSummaryRoomsCache
lazyLoadingCache
eventStateKeyCache
)
func NewRistrettoCache(maxCost config.DataUnit, maxAge time.Duration, enablePrometheus bool) *Caches {
@ -88,7 +89,7 @@ func NewRistrettoCache(maxCost config.DataUnit, maxAge time.Duration, enableProm
Prefix: roomNIDsCache,
MaxAge: maxAge,
},
RoomServerRoomIDs: &RistrettoCachePartition[int64, string]{ // room NID -> room ID
RoomServerRoomIDs: &RistrettoCachePartition[types.RoomNID, string]{ // room NID -> room ID
cache: cache,
Prefix: roomIDsCache,
MaxAge: maxAge,
@ -100,6 +101,11 @@ func NewRistrettoCache(maxCost config.DataUnit, maxAge time.Duration, enableProm
MaxAge: maxAge,
},
},
RoomServerStateKeys: &RistrettoCachePartition[types.EventStateKeyNID, string]{ // event NID -> event state key
cache: cache,
Prefix: eventStateKeyCache,
MaxAge: maxAge,
},
RoomInfos: &RistrettoCachePartition[string, *types.RoomInfo]{ // room ID -> room info
cache: cache,
Prefix: roomInfosCache,

19
roomserver/storage/shared/storage.go
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@ -72,7 +72,24 @@ func (d *Database) eventTypeNIDs(
func (d *Database) EventStateKeys(
ctx context.Context, eventStateKeyNIDs []types.EventStateKeyNID,
) (map[types.EventStateKeyNID]string, error) {
return d.EventStateKeysTable.BulkSelectEventStateKey(ctx, nil, eventStateKeyNIDs)
result := make(map[types.EventStateKeyNID]string, len(eventStateKeyNIDs))
fetch := make([]types.EventStateKeyNID, 0, len(eventStateKeyNIDs))
for _, nid := range eventStateKeyNIDs {
if key, ok := d.Cache.GetEventStateKey(nid); ok {
result[nid] = key
} else {
fetch = append(fetch, nid)
}
}
fromDB, err := d.EventStateKeysTable.BulkSelectEventStateKey(ctx, nil, fetch)
if err != nil {
return nil, err
}
for nid, key := range fromDB {
result[nid] = key
d.Cache.StoreEventStateKey(nid, key)
}
return result, nil
}
func (d *Database) EventStateKeyNIDs(