From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Michael Paquier <michael(at)paquier(dot)xyz> |
Cc: | Euler Taveira <euler(at)eulerto(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
Subject: | Re: Add a perl function in Cluster.pm to generate WAL |
Date: | 2024-01-03 23:39:29 |
Message-ID: | 370894.1704325169@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Michael Paquier <michael(at)paquier(dot)xyz> writes:
> I have added a comment about pg_logical_emit_message() being in
> non-transactional mode and the flush implied by pg_switch_wal() as
> that's important, edited a bit the whole, then applied the patch.
Buildfarm member skink has failed 3 times in
035_standby_logical_decoding.pl in the last couple of days:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=skink&dt=2024-01-03%2020%3A07%3A15
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=skink&dt=2024-01-03%2017%3A09%3A27
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=skink&dt=2024-01-01%2020%3A10%3A18
These all look like
# poll_query_until timed out executing this query:
# select (confl_active_logicalslot = 1) from pg_stat_database_conflicts where datname = 'testdb'
# expecting this output:
# t
# last actual query output:
# f
although it's notable that two different tests are involved
(vacuum vs. vacuum full).
I am not real sure what is happening there, but I see that c161ab74f
changed some details of how that test works, so I wonder if it's
responsible for these failures. The timing isn't a perfect match,
since this commit went in two weeks ago, but I don't see any
more-recent commits that seem like plausible explanations.
regards, tom lane
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