diff options
Diffstat (limited to 'src/backend/storage/ipc/standby.c')
| -rw-r--r-- | src/backend/storage/ipc/standby.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/backend/storage/ipc/standby.c b/src/backend/storage/ipc/standby.c index 875dcec1eba..112fe076775 100644 --- a/src/backend/storage/ipc/standby.c +++ b/src/backend/storage/ipc/standby.c @@ -961,10 +961,11 @@ LogStandbySnapshot(void) /* * Record an enhanced snapshot of running transactions into WAL. * - * The definitions of RunningTransactionsData and xl_xact_running_xacts - * are similar. We keep them separate because xl_xact_running_xacts - * is a contiguous chunk of memory and never exists fully until it is - * assembled in WAL. + * The definitions of RunningTransactionsData and xl_xact_running_xacts are + * similar. We keep them separate because xl_xact_running_xacts is a + * contiguous chunk of memory and never exists fully until it is assembled in + * WAL. The inserted records are marked as not being important for durability, + * to avoid triggering superflous checkpoint / archiving activity. */ static XLogRecPtr LogCurrentRunningXacts(RunningTransactions CurrRunningXacts) @@ -981,6 +982,7 @@ LogCurrentRunningXacts(RunningTransactions CurrRunningXacts) /* Header */ XLogBeginInsert(); + XLogSetRecordFlags(XLOG_MARK_UNIMPORTANT); XLogRegisterData((char *) (&xlrec), MinSizeOfXactRunningXacts); /* array of TransactionIds */ @@ -1035,6 +1037,7 @@ LogAccessExclusiveLocks(int nlocks, xl_standby_lock *locks) XLogBeginInsert(); XLogRegisterData((char *) &xlrec, offsetof(xl_standby_locks, locks)); XLogRegisterData((char *) locks, nlocks * sizeof(xl_standby_lock)); + XLogSetRecordFlags(XLOG_MARK_UNIMPORTANT); (void) XLogInsert(RM_STANDBY_ID, XLOG_STANDBY_LOCK); } |