diff options
Diffstat (limited to 'src/backend/access/transam/xlog.c')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index f0db58fb6e8..89889937465 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2168,6 +2168,7 @@ XLogBackgroundFlush(void) { XLogRecPtr WriteRqstPtr; bool flexible = true; + bool wrote_something = false; /* XLOG doesn't need flushing during recovery */ if (RecoveryInProgress()) @@ -2236,10 +2237,18 @@ XLogBackgroundFlush(void) WriteRqst.Write = WriteRqstPtr; WriteRqst.Flush = WriteRqstPtr; XLogWrite(WriteRqst, flexible, false); + wrote_something = true; } LWLockRelease(WALWriteLock); END_CRIT_SECTION(); + + /* + * If we wrote something then we have something to send to standbys also, + * otherwise the replication delay become around 7s with just async commit. + */ + if (wrote_something) + WalSndWakeup(); } /* |