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Re: pmon & smon transaction recovery/rollback

From: Kevin Lidh <kevin.lidh_at_gmail.com>
Date: Wed, 31 Jan 2007 07:42:34 -0700
Message-Id: <1170254554.6478.4.camel@lidhfed.lidh.com>


A long time ago on a database far, far away, we killed a process which was in the process of consuming a large amount of temp and SMON worked for hours on that tablespace. We actually had to set an event to "pause" SMON until we had the time to allow TEMP to be cleaned up.

On Wed, 2007-01-31 at 12:53 +0100, amonte wrote:
> Hi
>
> I have a basic question, we all know that pmon's task is to cleanup
> resource by failed processes such as rolling back transaction,
> releasing locks and resources etc. We also know that smon rolls back
> uncommited transactions after instance failure.
>
> My question is, I killed a couple of processes this morning and smon
> went crazy performing parallel recovery, I was wondering shouldnt that
> pmon's job? There was no instance failure.
>
> TIA
>
> Alex
>

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Received on Wed Jan 31 2007 - 08:42:34 CST

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