Re: WaitOnLock error - what does this mean?

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Robert B(dot) Easter" <reaster(at)comptechnews(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: WaitOnLock error - what does this mean?
Date: 2000-07-27 18:58:18
Message-ID: 200007271858.OAA27159@candle.pha.pa.us
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> "Robert B. Easter" <reaster(at)comptechnews(dot)com> writes:
> > ERROR: WaitOnLock: error on wakeup - Aborting this transaction
>
> Is there any NOTICE coming out right before that?
>
> For example:
>
> psql #1:
>
> begin;
> lock table tenk1;
>
> psql #2:
>
> begin;
> lock table tenk2;
> lock table tenk1;
>
> <waits>
>
> psql #1:
>
> lock table tenk2;
>
> NOTICE: Deadlock detected -- See the lock(l) manual page for a possible cause.
> ERROR: WaitOnLock: error on wakeup - Aborting this transaction
>
>
> Not sure why this isn't just one ERROR, since anyone using a client that
> discards NOTICEs is going to be confused...

Seems the code wants to throw the NOTICE, then keep going, then throw
the error later. I don't know who did this, but is was not me.

--
Bruce Momjian | http://candle.pha.pa.us
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