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Return event NID from StoreEvent, match PSQL vs SQLite behaviour, tweak backfill persistence (#2071)

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Neil Alexander 2021-12-09 15:03:26 +00:00 committed by GitHub
parent 172bd7c478
commit c3dda0779d
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 18 additions and 24 deletions
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2
roomserver/internal/input/input_events.go
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@ -122,7 +122,7 @@ func (r *Inputer) processRoomEvent(
}
// Store the event.
_, stateAtEvent, redactionEvent, redactedEventID, err := r.DB.StoreEvent(ctx, event, authEventNIDs, isRejected)
_, _, stateAtEvent, redactionEvent, redactedEventID, err := r.DB.StoreEvent(ctx, event, authEventNIDs, isRejected)
if err != nil {
return "", fmt.Errorf("r.DB.StoreEvent: %w", err)
}

6
roomserver/internal/perform/perform_backfill.go
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@ -546,6 +546,7 @@ func joinEventsFromHistoryVisibility(
func persistEvents(ctx context.Context, db storage.Database, events []*gomatrixserverlib.HeaderedEvent) (types.RoomNID, map[string]types.Event) {
var roomNID types.RoomNID
var eventNID types.EventNID
backfilledEventMap := make(map[string]types.Event)
for j, ev := range events {
nidMap, err := db.EventNIDs(ctx, ev.AuthEventIDs())
@ -559,10 +560,9 @@ func persistEvents(ctx context.Context, db storage.Database, events []*gomatrixs
authNids[i] = nid
i++
}
var stateAtEvent types.StateAtEvent
var redactedEventID string
var redactionEvent *gomatrixserverlib.Event
roomNID, stateAtEvent, redactionEvent, redactedEventID, err = db.StoreEvent(ctx, ev.Unwrap(), authNids, false)
eventNID, roomNID, _, redactionEvent, redactedEventID, err = db.StoreEvent(ctx, ev.Unwrap(), authNids, false)
if err != nil {
logrus.WithError(err).WithField("event_id", ev.EventID()).Error("Failed to persist event")
continue
@ -581,7 +581,7 @@ func persistEvents(ctx context.Context, db storage.Database, events []*gomatrixs
events[j] = ev
}
backfilledEventMap[ev.EventID()] = types.Event{
EventNID: stateAtEvent.StateEntry.EventNID,
EventNID: eventNID,
Event: ev.Unwrap(),
}
}

2
roomserver/storage/interface.go
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@ -70,7 +70,7 @@ type Database interface {
StoreEvent(
ctx context.Context, event *gomatrixserverlib.Event, authEventNIDs []types.EventNID,
isRejected bool,
) (types.RoomNID, types.StateAtEvent, *gomatrixserverlib.Event, string, error)
) (types.EventNID, types.RoomNID, types.StateAtEvent, *gomatrixserverlib.Event, string, error)
// Look up the state entries for a list of string event IDs
// Returns an error if the there is an error talking to the database
// Returns a types.MissingEventError if the event IDs aren't in the database.

14
roomserver/storage/shared/storage.go
View File

@ -461,7 +461,7 @@ func (d *Database) GetLatestEventsForUpdate(
func (d *Database) StoreEvent(
ctx context.Context, event *gomatrixserverlib.Event,
authEventNIDs []types.EventNID, isRejected bool,
) (types.RoomNID, types.StateAtEvent, *gomatrixserverlib.Event, string, error) {
) (types.EventNID, types.RoomNID, types.StateAtEvent, *gomatrixserverlib.Event, string, error) {
var (
roomNID types.RoomNID
eventTypeNID types.EventTypeNID
@ -538,7 +538,7 @@ func (d *Database) StoreEvent(
return nil
})
if err != nil {
return 0, types.StateAtEvent{}, nil, "", fmt.Errorf("d.Writer.Do: %w", err)
return 0, 0, types.StateAtEvent{}, nil, "", fmt.Errorf("d.Writer.Do: %w", err)
}
// We should attempt to update the previous events table with any
@ -551,10 +551,10 @@ func (d *Database) StoreEvent(
if prevEvents := event.PrevEvents(); len(prevEvents) > 0 {
roomInfo, err = d.RoomInfo(ctx, event.RoomID())
if err != nil {
return 0, types.StateAtEvent{}, nil, "", fmt.Errorf("d.RoomInfo: %w", err)
return 0, 0, types.StateAtEvent{}, nil, "", fmt.Errorf("d.RoomInfo: %w", err)
}
if roomInfo == nil && len(prevEvents) > 0 {
return 0, types.StateAtEvent{}, nil, "", fmt.Errorf("expected room %q to exist", event.RoomID())
return 0, 0, types.StateAtEvent{}, nil, "", fmt.Errorf("expected room %q to exist", event.RoomID())
}
// Create an updater - NB: on sqlite this WILL create a txn as we are directly calling the shared DB form of
// GetLatestEventsForUpdate - not via the SQLiteDatabase form which has `nil` txns. This
@ -563,7 +563,7 @@ func (d *Database) StoreEvent(
// to do writes however then this will need to go inside `Writer.Do`.
updater, err = d.GetLatestEventsForUpdate(ctx, *roomInfo)
if err != nil {
return 0, types.StateAtEvent{}, nil, "", fmt.Errorf("NewLatestEventsUpdater: %w", err)
return 0, 0, types.StateAtEvent{}, nil, "", fmt.Errorf("NewLatestEventsUpdater: %w", err)
}
// Ensure that we atomically store prev events AND commit them. If we don't wrap StorePreviousEvents
// and EndTransaction in a writer then it's possible for a new write txn to be made between the two
@ -580,11 +580,11 @@ func (d *Database) StoreEvent(
return err
})
if err != nil {
return 0, types.StateAtEvent{}, nil, "", err
return 0, 0, types.StateAtEvent{}, nil, "", err
}
}
return roomNID, types.StateAtEvent{
return eventNID, roomNID, types.StateAtEvent{
BeforeStateSnapshotNID: stateNID,
StateEntry: types.StateEntry{
StateKeyTuple: types.StateKeyTuple{

18
roomserver/storage/sqlite3/events_table.go
View File

@ -49,7 +49,8 @@ const eventsSchema = `
const insertEventSQL = `
INSERT INTO roomserver_events (room_nid, event_type_nid, event_state_key_nid, event_id, reference_sha256, auth_event_nids, depth, is_rejected)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
ON CONFLICT DO NOTHING;
ON CONFLICT DO NOTHING
RETURNING event_nid, state_snapshot_nid;
`
const selectEventSQL = "" +
@ -161,20 +162,13 @@ func (s *eventStatements) InsertEvent(
) (types.EventNID, types.StateSnapshotNID, error) {
// attempt to insert: the last_row_id is the event NID
var eventNID int64
var stateNID int64
insertStmt := sqlutil.TxStmt(txn, s.insertEventStmt)
result, err := insertStmt.ExecContext(
err := insertStmt.QueryRowContext(
ctx, int64(roomNID), int64(eventTypeNID), int64(eventStateKeyNID),
eventID, referenceSHA256, eventNIDsAsArray(authEventNIDs), depth, isRejected,
)
if err != nil {
return 0, 0, err
}
modified, err := result.RowsAffected()
if modified == 0 && err == nil {
return 0, 0, sql.ErrNoRows
}
eventNID, err = result.LastInsertId()
return types.EventNID(eventNID), 0, err
).Scan(&eventNID, &stateNID)
return types.EventNID(eventNID), types.StateSnapshotNID(stateNID), err
}
func (s *eventStatements) SelectEvent(