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Roomserver NID caches (#1335)

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* Initial work on roomserver NID caches

* Give caches to roomserver storage

* Populate caches

* Fix bugs

* Fix WASM build

* Don't hit cache twice in RoomNIDExcludingStubs

* Store reverse room ID-room NID mapping, consult caches when assigning NIDs
This commit is contained in:
Neil Alexander 2020-08-25 12:32:29 +01:00 committed by GitHub
parent 05242096a1
commit c8b873abc8
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 239 additions and 18 deletions
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101
internal/caching/cache_roomservernids.go Normal file
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@ -0,0 +1,101 @@
package caching
import (
"github.com/matrix-org/dendrite/roomserver/types"
)
const (
RoomServerStateKeyNIDsCacheName = "roomserver_statekey_nids"
RoomServerStateKeyNIDsCacheMaxEntries = 1024
RoomServerStateKeyNIDsCacheMutable = false
RoomServerEventTypeNIDsCacheName = "roomserver_eventtype_nids"
RoomServerEventTypeNIDsCacheMaxEntries = 64
RoomServerEventTypeNIDsCacheMutable = false
RoomServerRoomNIDsCacheName = "roomserver_room_nids"
RoomServerRoomNIDsCacheMaxEntries = 1024
RoomServerRoomNIDsCacheMutable = false
RoomServerRoomIDsCacheName = "roomserver_room_ids"
RoomServerRoomIDsCacheMaxEntries = 1024
RoomServerRoomIDsCacheMutable = false
)
type RoomServerCaches interface {
RoomServerNIDsCache
RoomVersionCache
}
// RoomServerNIDsCache contains the subset of functions needed for
// a roomserver NID cache.
type RoomServerNIDsCache interface {
GetRoomServerStateKeyNID(stateKey string) (types.EventStateKeyNID, bool)
StoreRoomServerStateKeyNID(stateKey string, nid types.EventStateKeyNID)
GetRoomServerEventTypeNID(eventType string) (types.EventTypeNID, bool)
StoreRoomServerEventTypeNID(eventType string, nid types.EventTypeNID)
GetRoomServerRoomNID(roomID string) (types.RoomNID, bool)
StoreRoomServerRoomNID(roomID string, nid types.RoomNID)
GetRoomServerRoomID(roomNID types.RoomNID) (string, bool)
StoreRoomServerRoomID(roomNID types.RoomNID, roomID string)
}
func (c Caches) GetRoomServerStateKeyNID(stateKey string) (types.EventStateKeyNID, bool) {
val, found := c.RoomServerStateKeyNIDs.Get(stateKey)
if found && val != nil {
if stateKeyNID, ok := val.(types.EventStateKeyNID); ok {
return stateKeyNID, true
}
}
return 0, false
}
func (c Caches) StoreRoomServerStateKeyNID(stateKey string, nid types.EventStateKeyNID) {
c.RoomServerStateKeyNIDs.Set(stateKey, nid)
}
func (c Caches) GetRoomServerEventTypeNID(eventType string) (types.EventTypeNID, bool) {
val, found := c.RoomServerEventTypeNIDs.Get(eventType)
if found && val != nil {
if eventTypeNID, ok := val.(types.EventTypeNID); ok {
return eventTypeNID, true
}
}
return 0, false
}
func (c Caches) StoreRoomServerEventTypeNID(eventType string, nid types.EventTypeNID) {
c.RoomServerEventTypeNIDs.Set(eventType, nid)
}
func (c Caches) GetRoomServerRoomNID(roomID string) (types.RoomNID, bool) {
val, found := c.RoomServerRoomNIDs.Get(roomID)
if found && val != nil {
if roomNID, ok := val.(types.RoomNID); ok {
return roomNID, true
}
}
return 0, false
}
func (c Caches) StoreRoomServerRoomNID(roomID string, roomNID types.RoomNID) {
c.RoomServerRoomNIDs.Set(roomID, roomNID)
c.RoomServerRoomIDs.Set(string(roomNID), roomID)
}
func (c Caches) GetRoomServerRoomID(roomNID types.RoomNID) (string, bool) {
val, found := c.RoomServerRoomIDs.Get(string(roomNID))
if found && val != nil {
if roomID, ok := val.(string); ok {
return roomID, true
}
}
return "", false
}
func (c Caches) StoreRoomServerRoomID(roomNID types.RoomNID, roomID string) {
c.StoreRoomServerRoomNID(roomID, roomNID)
}

8
internal/caching/caches.go
View File

@ -4,8 +4,12 @@ package caching
// different implementations as long as they satisfy the Cache
// interface.
type Caches struct {
RoomVersions Cache // implements RoomVersionCache
ServerKeys Cache // implements ServerKeyCache
RoomVersions Cache // RoomVersionCache
ServerKeys Cache // ServerKeyCache
RoomServerStateKeyNIDs Cache // RoomServerNIDsCache
RoomServerEventTypeNIDs Cache // RoomServerNIDsCache
RoomServerRoomNIDs Cache // RoomServerNIDsCache
RoomServerRoomIDs Cache // RoomServerNIDsCache
}
// Cache is the interface that an implementation must satisfy.

44
internal/caching/impl_inmemorylru.go
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@ -27,9 +27,49 @@ func NewInMemoryLRUCache(enablePrometheus bool) (*Caches, error) {
if err != nil {
return nil, err
}
roomServerStateKeyNIDs, err := NewInMemoryLRUCachePartition(
RoomServerStateKeyNIDsCacheName,
RoomServerStateKeyNIDsCacheMutable,
RoomServerStateKeyNIDsCacheMaxEntries,
enablePrometheus,
)
if err != nil {
return nil, err
}
roomServerEventTypeNIDs, err := NewInMemoryLRUCachePartition(
RoomServerEventTypeNIDsCacheName,
RoomServerEventTypeNIDsCacheMutable,
RoomServerEventTypeNIDsCacheMaxEntries,
enablePrometheus,
)
if err != nil {
return nil, err
}
roomServerRoomNIDs, err := NewInMemoryLRUCachePartition(
RoomServerRoomNIDsCacheName,
RoomServerRoomNIDsCacheMutable,
RoomServerRoomNIDsCacheMaxEntries,
enablePrometheus,
)
if err != nil {
return nil, err
}
roomServerRoomIDs, err := NewInMemoryLRUCachePartition(
RoomServerRoomIDsCacheName,
RoomServerRoomIDsCacheMutable,
RoomServerRoomIDsCacheMaxEntries,
enablePrometheus,
)
if err != nil {
return nil, err
}
return &Caches{
RoomVersions: roomVersions,
ServerKeys: serverKeys,
RoomVersions: roomVersions,
ServerKeys: serverKeys,
RoomServerStateKeyNIDs: roomServerStateKeyNIDs,
RoomServerEventTypeNIDs: roomServerEventTypeNIDs,
RoomServerRoomNIDs: roomServerRoomNIDs,
RoomServerRoomIDs: roomServerRoomIDs,
}, nil
}

2
roomserver/internal/api.go
View File

@ -16,7 +16,7 @@ type RoomserverInternalAPI struct {
DB storage.Database
Cfg *config.RoomServer
Producer sarama.SyncProducer
Cache caching.RoomVersionCache
Cache caching.RoomServerCaches
ServerName gomatrixserverlib.ServerName
KeyRing gomatrixserverlib.JSONVerifier
FedClient *gomatrixserverlib.FederationClient

2
roomserver/roomserver.go
View File

@ -42,7 +42,7 @@ func NewInternalAPI(
) api.RoomserverInternalAPI {
cfg := &base.Cfg.RoomServer
roomserverDB, err := storage.Open(&cfg.Database)
roomserverDB, err := storage.Open(&cfg.Database, base.Caches)
if err != nil {
logrus.WithError(err).Panicf("failed to connect to room server db")
}

4
roomserver/storage/postgres/storage.go
View File

@ -18,6 +18,7 @@ package postgres
import (
"database/sql"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/internal/sqlutil"
@ -33,7 +34,7 @@ type Database struct {
// Open a postgres database.
// nolint: gocyclo
func Open(dbProperties *config.DatabaseOptions) (*Database, error) {
func Open(dbProperties *config.DatabaseOptions, cache caching.RoomServerCaches) (*Database, error) {
var d Database
var db *sql.DB
var err error
@ -98,6 +99,7 @@ func Open(dbProperties *config.DatabaseOptions) (*Database, error) {
}
d.Database = shared.Database{
DB: db,
Cache: cache,
Writer: sqlutil.NewDummyWriter(),
EventTypesTable: eventTypes,
EventStateKeysTable: eventStateKeys,

80
roomserver/storage/shared/storage.go
View File

@ -6,6 +6,7 @@ import (
"encoding/json"
"fmt"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
@ -27,6 +28,7 @@ const redactionsArePermanent = false
type Database struct {
DB *sql.DB
Cache caching.RoomServerCaches
Writer sqlutil.Writer
EventsTable tables.Events
EventJSONTable tables.EventJSON
@ -51,7 +53,26 @@ func (d *Database) SupportsConcurrentRoomInputs() bool {
func (d *Database) EventTypeNIDs(
ctx context.Context, eventTypes []string,
) (map[string]types.EventTypeNID, error) {
return d.EventTypesTable.BulkSelectEventTypeNID(ctx, eventTypes)
result := make(map[string]types.EventTypeNID)
remaining := []string{}
for _, eventType := range eventTypes {
if nid, ok := d.Cache.GetRoomServerEventTypeNID(eventType); ok {
result[eventType] = nid
} else {
remaining = append(remaining, eventType)
}
}
if len(remaining) > 0 {
nids, err := d.EventTypesTable.BulkSelectEventTypeNID(ctx, remaining)
if err != nil {
return nil, err
}
for eventType, nid := range nids {
result[eventType] = nid
d.Cache.StoreRoomServerEventTypeNID(eventType, nid)
}
}
return result, nil
}
func (d *Database) EventStateKeys(
@ -63,7 +84,26 @@ func (d *Database) EventStateKeys(
func (d *Database) EventStateKeyNIDs(
ctx context.Context, eventStateKeys []string,
) (map[string]types.EventStateKeyNID, error) {
return d.EventStateKeysTable.BulkSelectEventStateKeyNID(ctx, eventStateKeys)
result := make(map[string]types.EventStateKeyNID)
remaining := []string{}
for _, eventStateKey := range eventStateKeys {
if nid, ok := d.Cache.GetRoomServerStateKeyNID(eventStateKey); ok {
result[eventStateKey] = nid
} else {
remaining = append(remaining, eventStateKey)
}
}
if len(remaining) > 0 {
nids, err := d.EventStateKeysTable.BulkSelectEventStateKeyNID(ctx, remaining)
if err != nil {
return nil, err
}
for eventStateKey, nid := range nids {
result[eventStateKey] = nid
d.Cache.StoreRoomServerStateKeyNID(eventStateKey, nid)
}
}
return result, nil
}
func (d *Database) StateEntriesForEventIDs(
@ -157,10 +197,14 @@ func (d *Database) EventsFromIDs(ctx context.Context, eventIDs []string) ([]type
}
func (d *Database) RoomNID(ctx context.Context, roomID string) (types.RoomNID, error) {
if nid, ok := d.Cache.GetRoomServerRoomNID(roomID); ok {
return nid, nil
}
roomNID, err := d.RoomsTable.SelectRoomNID(ctx, nil, roomID)
if err == sql.ErrNoRows {
return 0, nil
}
d.Cache.StoreRoomServerRoomNID(roomID, roomNID)
return roomNID, err
}
@ -214,6 +258,9 @@ func (d *Database) StateEntries(
func (d *Database) GetRoomVersionForRoom(
ctx context.Context, roomID string,
) (gomatrixserverlib.RoomVersion, error) {
if roomVersion, ok := d.Cache.GetRoomVersion(roomID); ok {
return roomVersion, nil
}
return d.RoomsTable.SelectRoomVersionForRoomID(
ctx, nil, roomID,
)
@ -222,6 +269,11 @@ func (d *Database) GetRoomVersionForRoom(
func (d *Database) GetRoomVersionForRoomNID(
ctx context.Context, roomNID types.RoomNID,
) (gomatrixserverlib.RoomVersion, error) {
if roomID, ok := d.Cache.GetRoomServerRoomID(roomNID); ok {
if roomVersion, ok := d.Cache.GetRoomVersion(roomID); ok {
return roomVersion, nil
}
}
return d.RoomsTable.SelectRoomVersionForRoomNID(
ctx, roomNID,
)
@ -488,6 +540,9 @@ func (d *Database) assignRoomNID(
ctx context.Context, txn *sql.Tx,
roomID string, roomVersion gomatrixserverlib.RoomVersion,
) (types.RoomNID, error) {
if roomNID, ok := d.Cache.GetRoomServerRoomNID(roomID); ok {
return roomNID, nil
}
// Check if we already have a numeric ID in the database.
roomNID, err := d.RoomsTable.SelectRoomNID(ctx, txn, roomID)
if err == sql.ErrNoRows {
@ -498,14 +553,20 @@ func (d *Database) assignRoomNID(
roomNID, err = d.RoomsTable.SelectRoomNID(ctx, txn, roomID)
}
}
if err == nil {
d.Cache.StoreRoomServerRoomNID(roomID, roomNID)
}
return roomNID, err
}
func (d *Database) assignEventTypeNID(
ctx context.Context, txn *sql.Tx, eventType string,
) (eventTypeNID types.EventTypeNID, err error) {
) (types.EventTypeNID, error) {
if eventTypeNID, ok := d.Cache.GetRoomServerEventTypeNID(eventType); ok {
return eventTypeNID, nil
}
// Check if we already have a numeric ID in the database.
eventTypeNID, err = d.EventTypesTable.SelectEventTypeNID(ctx, txn, eventType)
eventTypeNID, err := d.EventTypesTable.SelectEventTypeNID(ctx, txn, eventType)
if err == sql.ErrNoRows {
// We don't have a numeric ID so insert one into the database.
eventTypeNID, err = d.EventTypesTable.InsertEventTypeNID(ctx, txn, eventType)
@ -514,12 +575,18 @@ func (d *Database) assignEventTypeNID(
eventTypeNID, err = d.EventTypesTable.SelectEventTypeNID(ctx, txn, eventType)
}
}
return
if err == nil {
d.Cache.StoreRoomServerEventTypeNID(eventType, eventTypeNID)
}
return eventTypeNID, err
}
func (d *Database) assignStateKeyNID(
ctx context.Context, txn *sql.Tx, eventStateKey string,
) (types.EventStateKeyNID, error) {
if eventStateKeyNID, ok := d.Cache.GetRoomServerStateKeyNID(eventStateKey); ok {
return eventStateKeyNID, nil
}
// Check if we already have a numeric ID in the database.
eventStateKeyNID, err := d.EventStateKeysTable.SelectEventStateKeyNID(ctx, txn, eventStateKey)
if err == sql.ErrNoRows {
@ -530,6 +597,9 @@ func (d *Database) assignStateKeyNID(
eventStateKeyNID, err = d.EventStateKeysTable.SelectEventStateKeyNID(ctx, txn, eventStateKey)
}
}
if err == nil {
d.Cache.StoreRoomServerStateKeyNID(eventStateKey, eventStateKeyNID)
}
return eventStateKeyNID, err
}

4
roomserver/storage/sqlite3/storage.go
View File

@ -19,6 +19,7 @@ import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/storage/shared"
@ -46,7 +47,7 @@ type Database struct {
// Open a sqlite database.
// nolint: gocyclo
func Open(dbProperties *config.DatabaseOptions) (*Database, error) {
func Open(dbProperties *config.DatabaseOptions, cache caching.RoomServerCaches) (*Database, error) {
var d Database
var err error
if d.db, err = sqlutil.Open(dbProperties); err != nil {
@ -120,6 +121,7 @@ func Open(dbProperties *config.DatabaseOptions) (*Database, error) {
}
d.Database = shared.Database{
DB: d.db,
Cache: cache,
Writer: sqlutil.NewExclusiveWriter(),
EventsTable: d.events,
EventTypesTable: d.eventTypes,

7
roomserver/storage/storage.go
View File

@ -19,18 +19,19 @@ package storage
import (
"fmt"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/roomserver/storage/postgres"
"github.com/matrix-org/dendrite/roomserver/storage/sqlite3"
)
// Open opens a database connection.
func Open(dbProperties *config.DatabaseOptions) (Database, error) {
func Open(dbProperties *config.DatabaseOptions, cache caching.RoomServerCaches) (Database, error) {
switch {
case dbProperties.ConnectionString.IsSQLite():
return sqlite3.Open(dbProperties)
return sqlite3.Open(dbProperties, cache)
case dbProperties.ConnectionString.IsPostgres():
return postgres.Open(dbProperties)
return postgres.Open(dbProperties, cache)
default:
return nil, fmt.Errorf("unexpected database type")
}

5
roomserver/storage/storage_wasm.go
View File

@ -17,15 +17,16 @@ package storage
import (
"fmt"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/roomserver/storage/sqlite3"
)
// NewPublicRoomsServerDatabase opens a database connection.
func Open(dbProperties *config.DatabaseOptions) (Database, error) {
func Open(dbProperties *config.DatabaseOptions, cache caching.RoomServerCaches) (Database, error) {
switch {
case dbProperties.ConnectionString.IsSQLite():
return sqlite3.Open(dbProperties)
return sqlite3.Open(dbProperties, cache)
case dbProperties.ConnectionString.IsPostgres():
return nil, fmt.Errorf("can't use Postgres implementation")
default: