Re: Locking question?

From: "Shoaib Mir" <shoaibmir(at)gmail(dot)com>
To: "Gurjeet Singh" <singh(dot)gurjeet(at)gmail(dot)com>
Cc: PostgreSQL <pgsql-general(at)postgresql(dot)org>
Subject: Re: Locking question?
Date: 2007-02-06 09:21:54
Message-ID: bf54be870702060121l15581760ifd4bb9e268a0643a@mail.gmail.com
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There is such timeout from the database server for the idle connections but
yes you can always use firewall settings in order to do that and kill idle
connections.

--
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 2/6/07, Gurjeet Singh <singh(dot)gurjeet(at)gmail(dot)com> wrote:
>
> On 1/30/07, Alvaro Herrera <alvherre(at)commandprompt(dot)com> wrote:
> >
> > Shoaib Mir wrote:
> > > While debugging an application, I just wanted to confirm from the list
> > here:
> > >
> > > Suppose I have a long running transaction which has a few updates and
> > > inserts running on some specific tables which means it has acquired
> > > Exclusive locks too during the transaction on specific table but if
> > just
> > > before commit the client app crashes and the commit is never sent,
> > will the
> > > Exclusive locks be automatically released?
> >
> > Yes (assuming the backend dies in the process, which may not happen if
> > the app dies silently and while not waiting for anything from the
> > server).
> >
> >
> Do you mean that the Ex-lock will be held indefinitely in the following
> situation"
>
> i) Appln. acquires Exclusive lock.
> ii) Appln. sleeps or is interacting with human.
> ii) Appln. crashes.
>
> Doesn't the backend kill itself if it detects that the other side of the
> communincation channel has gone down?
>
>
> --
> gurjeet[(dot)singh](at)EnterpriseDB(dot)com
> singh(dot)gurjeet(at){ gmail | hotmail | yahoo }.com

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