Re: Synchronous commit behavior during network outage

Hi Timas,

> > Thanks for the report. It seems to be a clear violation of what is
> > promised in the docs. Although it's unlikely that someone implemented
> > an application which deals with important data and "pressed Ctr+C" as
> > it's done in psql. So this might be not such a critical issue after
> > all. BTW what version of PostgreSQL are you using?
> >
>
> Which part of the docs does this contradict?

The documentation to synchronous_commit = remote_apply explicitly states [1]:

"""
When set to remote_apply, commits will wait until replies from the
current synchronous standby(s) indicate they have received the commit
record of the transaction and applied it, so that it has become
visible to queries on the standby(s), and also written to durable
storage on the standbys.
"""

Here commit on the master happened before receiving replies from the standby(s).

[1]: https://www.postgresql.org/docs/13/runtime-config-wal.html#GUC-SYNCHRONOUS-COMMIT

--
Best regards,
Aleksander Alekseev