summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorRobert Haas <rhaas@postgresql.org>2016-10-27 14:27:40 -0400
committerRobert Haas <rhaas@postgresql.org>2016-10-27 14:56:37 -0400
commit4a8cfbdcbe8447e4226b2ebdb155e0acc1167db5 (patch)
tree86c540c67f435ff7f91d2a1b55689b498a4e089f /src
parentd1e9c8269bb1b8eae595c48b67f11e3fd4658170 (diff)
If the stats collector dies during Hot Standby, restart it.
This bug exists as far back as 9.0, when Hot Standby was introduced, so back-patch to all supported branches. Report and patch by Takayuki Tsunakawa, reviewed by Michael Paquier and Kuntal Ghosh.
Diffstat (limited to 'src')
-rw-r--r--src/backend/postmaster/postmaster.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 5489f239cc4..56c0c493449 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -1749,7 +1749,8 @@ ServerLoop(void)
PgArchPID = pgarch_start();
/* If we have lost the stats collector, try to start a new one */
- if (PgStatPID == 0 && pmState == PM_RUN)
+ if (PgStatPID == 0 &&
+ (pmState == PM_RUN || pmState == PM_HOT_STANDBY))
PgStatPID = pgstat_start();
/* If we need to signal the autovacuum launcher, do so now */
@@ -2929,7 +2930,7 @@ reaper(SIGNAL_ARGS)
if (!EXIT_STATUS_0(exitstatus))
LogChildExit(LOG, _("statistics collector process"),
pid, exitstatus);
- if (pmState == PM_RUN)
+ if (pmState == PM_RUN || pmState == PM_HOT_STANDBY)
PgStatPID = pgstat_start();
continue;
}