diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/utils/activity/pgstat_wal.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/backend/utils/activity/pgstat_wal.c b/src/backend/utils/activity/pgstat_wal.c index bcaed14d02e..6a81b781357 100644 --- a/src/backend/utils/activity/pgstat_wal.c +++ b/src/backend/utils/activity/pgstat_wal.c @@ -38,13 +38,25 @@ static WalUsage prevWalUsage; * * Must be called by processes that generate WAL, that do not call * pgstat_report_stat(), like walwriter. + * + * "force" set to true ensures that the statistics are flushed; note that + * this needs to acquire the pgstat shmem LWLock, waiting on it. When + * set to false, the statistics may not be flushed if the lock could not + * be acquired. */ void pgstat_report_wal(bool force) { - pgstat_flush_wal(force); + bool nowait; + + /* like in pgstat.c, don't wait for lock acquisition when !force */ + nowait = !force; + + /* flush wal stats */ + pgstat_flush_wal(nowait); - pgstat_flush_io(force); + /* flush IO stats */ + pgstat_flush_io(nowait); } /* |