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help / color / mirror / Atom feedFrom: Tom Lane <[email protected]>
To: vignesh C <[email protected]>
Cc: Alexander Korotkov <[email protected]>
Cc: Hayato Kuroda (Fujitsu) <[email protected]>
Cc: Alexander Lakhin <[email protected]>
Cc: Vitaly Davydov <[email protected]>
Cc: Amit Kapila <[email protected]>
Cc: pgsql-hackers <[email protected]>
Cc: Masahiko Sawada <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Slot's restart_lsn may point to removed WAL segment after hard restart unexpectedly
Date: Tue, 17 Jun 2025 16:18:30 -0400
Message-ID: <[email protected]> (raw)
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vignesh C <[email protected]> writes:
> While tracking buildfarm for one of other commits, I noticed this failure:
> TRAP: failed Assert("s->data.restart_lsn >=
> s->last_saved_restart_lsn"), File:
> "../pgsql/src/backend/replication/slot.c", Line: 1813, PID: 3945797
My animal mamba is also showing this assertion failure, but in a
different test (recovery/t/040_standby_failover_slots_sync.pl).
It's failed in two out of its three runs since ca307d5ce went in,
so it's more reproducible than scorpion's report, though still not
perfectly so.
I suspect that mamba is prone to this simply because it's slow,
although perhaps there's a different reason. Anyway, happy to
investigate manually if there's something you'd like me to
check for.
regards, tom lane
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Subject: Re: Slot's restart_lsn may point to removed WAL segment after hard restart unexpectedly
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