Re: Server instrumentation: pg_terminate_backend, pg_reload_conf

Bruce Momjian wrote:
> Andreas Pflug wrote:
>
>>This patch reenables pg_terminate_backend, allowing (superuser only, of
>>course) to terminate a backend. As taken from the discussion some weeks
>>earlier, SIGTERM seems to be used quite widely, without a report of
>>misbehavior so while the code path is officially not too well tested,
>>in practice it's working ok and helpful.
>
>
> I thought we had a discussion that the places we accept SIGTERM might be
> places that can exit if the postmaster is shutting down, but might not
> be places we can exit if the postmaster continues running, e.g. holding
> locks.  Have you checked all the places we honor SIGTERM to check that
> we are safe to exit?  I know Tom had concerns about that.

My patch is purely to enable a supervisor to issue a SIGTERM using a
pgsql client, instead of doing it from a server command line. It's not
meant to fix the underlying problems.

Regards,
Andreas