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Re: Logging problems in PostgreSQL 7.2devel

From: John Summerfield <pgtest(at)os2(dot)ami(dot)com(dot)au>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: John Summerfield <pgtest(at)os2(dot)ami(dot)com(dot)au>, PostgreSQL Bugs <pgsql-bugs(at)postgresql(dot)org>, Peter Eisentraut <peter_e(at)gmx(dot)net>
Subject: Re: Logging problems in PostgreSQL 7.2devel
Date: 2001-09-08 00:13:53
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-bugs
On Fri, 7 Sep 2001, Tom Lane wrote:

> John Summerfield <pgtest(at)os2(dot)ami(dot)com(dot)au> writes:
> > I have postmaster configured to use syslog. Despite this, these messages appear on the terminal from which I start it:
> > 2001-09-03 23:44:37 [26371]  DEBUG:  recycled transaction log file 0000000000000044
> Ah, I see what's causing that.  elog.c does this to decide whether to
> write on stderr:
> 	/* write to terminal */
> 	if (Use_syslog <= 1 || whereToSendOutput == Debug)
> 		write(2, msg_buf, strlen(msg_buf));
> Now, whereToSendOutput is initially Debug in a postmaster or standalone
> backend, and it gets changed to Remote when a normal backend is forked
> from the postmaster.  The messages that John is seeing come from routine
> checkpoint subprocesses, which are also forked off from the postmaster
> --- and whereToSendOutput is never changed in that path.
> It strikes me that perhaps we should have whereToSendOutput start out
> as None in a postmaster (but it should still be Debug in a standalone
> backend or bootstrap run).
> Peter, I'm cc'ing you since you've messed with elog message handling
> most recently.  Do you have any thoughts about proper behavior here?

I should also mention these debug messages occur despite my efforts to turn them off.


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