Re: <IDLE> in transaction - safest way to kill

Lists: pgsql-general
From: "William Temperley" <willtemperley(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: <IDLE> in transaction - safest way to kill
Date: 2008-12-05 14:08:45
Message-ID: 439dc11e0812050608o538aed3bwc40e2f5bb1009ff8@mail.gmail.com
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Hi all

Could anyone tell me what's the best thing to with idle transactions
that are holding locks?

I just killed the process as I wanted to get on with some work. I'm
just not sure this is a good idea when we go into production.

Cheers

Will T


From: Glyn Astill <glynastill(at)yahoo(dot)co(dot)uk>
To: pgsql-general(at)postgresql(dot)org, William Temperley <willtemperley(at)gmail(dot)com>
Subject: Re: <IDLE> in transaction - safest way to kill
Date: 2008-12-05 14:25:02
Message-ID: 94263.23327.qm@web23606.mail.ird.yahoo.com
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select pg_cancel_backend(<pid>);

--- On Fri, 5/12/08, William Temperley <willtemperley(at)gmail(dot)com> wrote:

> From: William Temperley <willtemperley(at)gmail(dot)com>
> Subject: [GENERAL] <IDLE> in transaction - safest way to kill
> To: pgsql-general(at)postgresql(dot)org
> Date: Friday, 5 December, 2008, 2:08 PM
> Hi all
>
> Could anyone tell me what's the best thing to with idle
> transactions
> that are holding locks?
>
> I just killed the process as I wanted to get on with some
> work. I'm
> just not sure this is a good idea when we go into
> production.
>
> Cheers
>
> Will T
>
> --
> Sent via pgsql-general mailing list
> (pgsql-general(at)postgresql(dot)org)
> To make changes to your subscription:
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From: "William Temperley" <willtemperley(at)gmail(dot)com>
To: glynastill(at)yahoo(dot)co(dot)uk
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: <IDLE> in transaction - safest way to kill
Date: 2008-12-05 15:44:54
Message-ID: 439dc11e0812050744p14562eb8v9cdce9f9e7963ed1@mail.gmail.com
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>>
>> Could anyone tell me what's the best thing to with idle
>> transactions
>> that are holding locks?

On Fri, Dec 5, 2008 at 2:25 PM, Glyn Astill <glynastill(at)yahoo(dot)co(dot)uk> wrote:
>
> select pg_cancel_backend(<pid>);
>

Thanks. Sorry for the basic question.

Will


From: "Fujii Masao" <masao(dot)fujii(at)gmail(dot)com>
To: glynastill(at)yahoo(dot)co(dot)uk
Cc: pgsql-general(at)postgresql(dot)org, "William Temperley" <willtemperley(at)gmail(dot)com>
Subject: Re: <IDLE> in transaction - safest way to kill
Date: 2008-12-06 04:03:21
Message-ID: 3f0b79eb0812052003v2a9436a1qfef600333a508b0a@mail.gmail.com
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On Fri, Dec 5, 2008 at 11:25 PM, Glyn Astill <glynastill(at)yahoo(dot)co(dot)uk> wrote:
>
> select pg_cancel_backend(<pid>);

No, pg_cancel_backend() cancels only *query*, and doesn't kill idle
in transaction. I think that killing the backend (idle in transaction) with
SIGTERM is better way.

Regards,

--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center