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Roomserver per-room input parallelisation (Postgres) (#1289)

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* Per-room input mutex

* GetMembership should use transaction when assigning state key NID

* Actually use writer transactions rather than ignoring them

* Limit per-room mutexes to Postgres

* Flip the check in InputRoomEvents
This commit is contained in:
Neil Alexander 2020-08-20 16:24:33 +01:00 • committed by GitHub
parent 0fea056db4
commit 068a3d3c9f
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GPG key ID: 4AEE18F83AFDEB23
12 changed files with 68 additions and 36 deletions
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5
roomserver/storage/sqlite3/events_table.go
View file

@ -279,9 +279,10 @@ func (s *eventStatements) BulkSelectStateAtEventByID(
}
func (s *eventStatements) UpdateEventState(
ctx context.Context, eventNID types.EventNID, stateNID types.StateSnapshotNID,
ctx context.Context, txn *sql.Tx, eventNID types.EventNID, stateNID types.StateSnapshotNID,
) error {
_, err := s.updateEventStateStmt.ExecContext(ctx, int64(stateNID), int64(eventNID))
stmt := sqlutil.TxStmt(txn, s.updateEventStateStmt)
_, err := stmt.ExecContext(ctx, int64(stateNID), int64(eventNID))
return err
}

6
roomserver/storage/sqlite3/published_table.go
View file

@ -19,6 +19,7 @@ import (
"database/sql"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/storage/shared"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
)
@ -65,9 +66,10 @@ func NewSqlitePublishedTable(db *sql.DB) (tables.Published, error) {
}
func (s *publishedStatements) UpsertRoomPublished(
ctx context.Context, roomID string, published bool,
ctx context.Context, txn *sql.Tx, roomID string, published bool,
) error {
_, err := s.upsertPublishedStmt.ExecContext(ctx, roomID, published)
stmt := sqlutil.TxStmt(txn, s.upsertPublishedStmt)
_, err := stmt.ExecContext(ctx, roomID, published)
return err
}

11
roomserver/storage/sqlite3/room_aliases_table.go
View file

@ -20,6 +20,7 @@ import (
"database/sql"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/storage/shared"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
)
@ -81,9 +82,10 @@ func NewSqliteRoomAliasesTable(db *sql.DB) (tables.RoomAliases, error) {
}
func (s *roomAliasesStatements) InsertRoomAlias(
ctx context.Context, alias string, roomID string, creatorUserID string,
ctx context.Context, txn *sql.Tx, alias string, roomID string, creatorUserID string,
) error {
_, err := s.insertRoomAliasStmt.ExecContext(ctx, alias, roomID, creatorUserID)
stmt := sqlutil.TxStmt(txn, s.insertRoomAliasStmt)
_, err := stmt.ExecContext(ctx, alias, roomID, creatorUserID)
return err
}
@ -131,8 +133,9 @@ func (s *roomAliasesStatements) SelectCreatorIDFromAlias(
}
func (s *roomAliasesStatements) DeleteRoomAlias(
ctx context.Context, alias string,
ctx context.Context, txn *sql.Tx, alias string,
) error {
_, err := s.deleteRoomAliasStmt.ExecContext(ctx, alias)
stmt := sqlutil.TxStmt(txn, s.deleteRoomAliasStmt)
_, err := stmt.ExecContext(ctx, alias)
return err
}

8
roomserver/storage/sqlite3/storage.go
View file

@ -139,6 +139,14 @@ func Open(dbProperties *config.DatabaseOptions) (*Database, error) {
return &d, nil
}
func (d *Database) SupportsConcurrentRoomInputs() bool {
// This isn't supported in SQLite mode yet because of issues with
// database locks.
// TODO: Look at this again - the problem is probably to do with
// the membership updaters and latest events updaters.
return false
}
func (d *Database) GetLatestEventsForUpdate(
ctx context.Context, roomNID types.RoomNID,
) (*shared.LatestEventsUpdater, error) {