Re: What happens if the socket lock file is deleted?

Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> writes:
> From here at ~line 1781:

> https://github.com/postgres/postgres/blob/master/src/backend/postmaster/postmaster.c

> /*
> * Once a minute, verify that postmaster.pid hasn't been removed or
> * overwritten. If it has, we force a shutdown.

Actually, Steve was asking about socket lock files, so the relevant
code fragment is the bit just below that:

/*
* Touch Unix socket and lock files every 58 minutes, to ensure that
* they are not removed by overzealous /tmp-cleaning tasks. We assume
* no one runs cleaners with cutoff times of less than an hour ...
*/
if (now - last_touch_time >= 58 * SECS_PER_MINUTE)
{
TouchSocketFiles();
TouchSocketLockFiles();
last_touch_time = now;
}

regards, tom lane