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Re: SIGALRM in autovacuum.c

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SIGALRM in autovacuum.c
Date: 2006-01-02 03:35:18
Message-ID: 27422.1136172918@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Is this correct in autovacuum.c?
> 	    pqsignal(SIGALRM, handle_sig_alarm);
> Should it be SIG_IGN?

Absolutely not.  autovacuum takes locks just like a backend and has to
be able to handle deadlock timeout checks.

			regards, tom lane

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