diff options
| -rw-r--r-- | src/backend/utils/cache/relmapper.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/utils/cache/relmapper.c b/src/backend/utils/cache/relmapper.c index 34363b70c20..a6e38adce30 100644 --- a/src/backend/utils/cache/relmapper.c +++ b/src/backend/utils/cache/relmapper.c @@ -1030,12 +1030,13 @@ relmap_redo(XLogReaderState *record) * preserve files, either. * * There shouldn't be anyone else updating relmaps during WAL replay, - * so we don't bother to take the RelationMappingLock. We would need - * to do so if load_relmap_file needed to interlock against writers. + * but grab the lock to interlock against load_relmap_file(). */ + LWLockAcquire(RelationMappingLock, LW_EXCLUSIVE); write_relmap_file((xlrec->dbid == InvalidOid), &newmap, false, true, false, xlrec->dbid, xlrec->tsid, dbpath); + LWLockRelease(RelationMappingLock); pfree(dbpath); } |