Re: [GENERAL] Auto-timeout on all queries

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: Vadim Mikheev <vadim(at)krs(dot)ru>
Cc: Bob Kruger <bkruger(at)mindspring(dot)com>, PostgreSQL-general <pgsql-general(at)postgreSQL(dot)org>
Subject: Re: [GENERAL] Auto-timeout on all queries
Date: 1999-07-06 03:55:32
Message-ID: 199907060355.XAA15866@candle.pha.pa.us
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> Bruce Momjian wrote:
> >
> > > I would like to make one small request for future releases. Is there a
> > > setup parameter that could be enabled that would put a timeout for a query
> > > that runs too long or endangers the integrity of the system? With the
> > > systems that I use, there are times that queries are entered that contain
> > > errors or run so long that they eventually cause a system crash. It would
> > > be most helpful if a timeout limit on queries could be enabled that would
> > > stop a query after so much time and release the resources back to the system.
> >
> > Does anyone thing this would be a nice feature? We can easily do it
> > with alarm()/elog(), but I want to know if it would be valuable.
>
> Not so easy - we use SIGALRM in locking...

Oh. :-) I forgot.

>
> But why not just use CANCEL to stop too long running queries?

Good question.

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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