Re: Logging problems in PostgreSQL 7.2devel

On Fri, 7 Sep 2001, Tom Lane wrote:


> John Summerfield <pgtest@os2.ami.com.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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