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Add further debug info to help debug 019_replslot_limit.pl failures.

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See also afdeff1052. Failures after that commit provided a few more hints,
but not yet enough to understand what's going on.

In 019_replslot_limit.pl shut down nodes with fast instead of immediate mode
if we observe the failure mode. That should tell us whether the failures we're
observing are just a timing issue under high load. PGCTLTIMEOUT should prevent
buildfarm animals from hanging endlessly.

Also adds a bit more logging to replication slot drop and ShutdownPostgres().

Discussion: https://postgr.es/m/20220225192941.hqnvefgdzaro6gzg@alap3.anarazel.de
This commit is contained in:
Andres Freund
2022-02-25 16:58:48 -08:00
parent 638300fef5
commit fe0972ee5e
5 changed files with 55 additions and 1 deletions
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src/include/storage/lwlock.h
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@@ -121,6 +121,7 @@ extern void LWLockReleaseClearVar(LWLock *lock, uint64 *valptr, uint64 val);
extern void LWLockReleaseAll(void);
extern bool LWLockHeldByMe(LWLock *lock);
extern bool LWLockHeldByMeInMode(LWLock *lock, LWLockMode mode);
extern int LWLockHeldCount(void);
extern bool LWLockWaitForVar(LWLock *lock, uint64 *valptr, uint64 oldval, uint64 *newval);
extern void LWLockUpdateVar(LWLock *lock, uint64 *valptr, uint64 value);