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Add more logs (#2005)
* Add more logs To help debug the migration issue in #1924 along with manual data-loss-inducing fixes. Also log the origin server on processed txns to help debug buggy server origins. * Fix query
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@ -345,7 +345,7 @@ func (t *txnReq) processTransaction(ctx context.Context) (*gomatrixserverlib.Res
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}
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if c := len(results); c > 0 {
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util.GetLogger(ctx).Infof("Processed %d PDUs from transaction %q", c, t.TransactionID)
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util.GetLogger(ctx).Infof("Processed %d PDUs from %v in transaction %q", c, t.Origin, t.TransactionID)
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}
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return &gomatrixserverlib.RespSend{PDUs: results}, nil
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}
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@ -220,7 +220,6 @@ func UpStateBlocksRefactor(tx *sql.Tx) error {
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index := stateSnapshotData{snapshot.StateSnapshotNID, snapshot.RoomNID}
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newsnapshots[index] = append(newsnapshots[index], blocknid)
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}
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for snapshotdata, newblocks := range newsnapshots {
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var newblocksarray pq.Int64Array
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for _, b := range newblocks {
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@ -229,11 +228,11 @@ func UpStateBlocksRefactor(tx *sql.Tx) error {
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var newNID types.StateSnapshotNID
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err = tx.QueryRow(`
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INSERT INTO roomserver_state_snapshots (state_snapshot_hash, room_nid, state_block_nids)
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VALUES ($1, $2, $3)
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ON CONFLICT (state_snapshot_hash) DO UPDATE SET room_nid=$2
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RETURNING state_snapshot_nid
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`, newblocks.Hash(), snapshotdata.RoomNID, newblocksarray).Scan(&newNID)
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INSERT INTO roomserver_state_snapshots (state_snapshot_hash, room_nid, state_block_nids)
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VALUES ($1, $2, $3)
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ON CONFLICT (state_snapshot_hash) DO UPDATE SET room_nid=$2
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RETURNING state_snapshot_nid
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`, newblocks.Hash(), snapshotdata.RoomNID, newblocksarray).Scan(&newNID)
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if err != nil {
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return fmt.Errorf("tx.QueryRow.Scan (insert new snapshot): %w", err)
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}
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@ -252,16 +251,49 @@ func UpStateBlocksRefactor(tx *sql.Tx) error {
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// If we do, this is a problem if Dendrite tries to load the snapshot as it will not exist
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// in roomserver_state_snapshots
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var count int64
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if err = tx.QueryRow(`SELECT COUNT(*) FROM roomserver_events WHERE state_snapshot_nid < $1 AND state_snapshot_nid != 0`, maxsnapshotid).Scan(&count); err != nil {
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return fmt.Errorf("assertion query failed: %s", err)
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}
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if count > 0 {
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var debugEventID, debugRoomID string
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var debugEventTypeNID, debugStateKeyNID, debugSnapNID, debugDepth int64
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err = tx.QueryRow(
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`SELECT event_id, event_type_nid, event_state_key_nid, roomserver_events.state_snapshot_nid, depth, room_id FROM roomserver_events
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JOIN roomserver_rooms ON roomserver_rooms.room_nid = roomserver_events.room_nid WHERE roomserver_events.state_snapshot_nid < $1 AND roomserver_events.state_snapshot_nid != 0`, maxsnapshotid,
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).Scan(&debugEventID, &debugEventTypeNID, &debugStateKeyNID, &debugSnapNID, &debugDepth, &debugRoomID)
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if err != nil {
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logrus.Errorf("cannot extract debug info: %v", err)
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} else {
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logrus.Errorf(
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"Affected row: event_id=%v room_id=%v type=%v state_key=%v snapshot=%v depth=%v",
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debugEventID, debugRoomID, debugEventTypeNID, debugStateKeyNID, debugSnapNID, debugDepth,
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)
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logrus.Errorf("To fix this manually, run this query first then retry the migration: "+
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"UPDATE roomserver_events SET state_snapshot_nid=0 WHERE event_id='%v'", debugEventID)
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}
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return fmt.Errorf("%d events exist in roomserver_events which have not been converted to a new state_snapshot_nid; this is a bug, please report", count)
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}
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if err = tx.QueryRow(`SELECT COUNT(*) FROM roomserver_rooms WHERE state_snapshot_nid < $1 AND state_snapshot_nid != 0`, maxsnapshotid).Scan(&count); err != nil {
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return fmt.Errorf("assertion query failed: %s", err)
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}
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if count > 0 {
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var debugRoomID string
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var debugSnapNID, debugLastEventNID int64
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err = tx.QueryRow(
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`SELECT room_id, state_snapshot_nid, last_event_sent_nid FROM roomserver_rooms WHERE state_snapshot_nid < $1 AND state_snapshot_nid != 0`, maxsnapshotid,
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).Scan(&debugRoomID, &debugSnapNID, &debugLastEventNID)
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if err != nil {
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logrus.Errorf("cannot extract debug info: %v", err)
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} else {
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logrus.Errorf(
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"Affected row: room_id=%v snapshot=%v last_sent=%v",
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debugRoomID, debugSnapNID, debugLastEventNID,
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)
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logrus.Errorf("To fix this manually, run this query first then retry the migration: "+
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"UPDATE roomserver_rooms SET state_snapshot_nid=0 WHERE room_id='%v'", debugRoomID)
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logrus.Errorf("Running this UPDATE will cause the room in question to become unavailable on this server. Leave and re-join the room afterwards.")
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}
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return fmt.Errorf("%d rooms exist in roomserver_rooms which have not been converted to a new state_snapshot_nid; this is a bug, please report", count)
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}
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