Re: Crash Recovery

> "Naik, Kevin K" wrote:
>
> Hi All,
>
> I have an interesting problem, on one of my databases, a data
> warehouse, a killed session was taking too long
> to rollback. It was time for the backup, and I had to do a shutdown
> abort.
> No its time to open the database, instance parallel recovery is taking
> place as normal, but the problem is,
> its being running for more than 20 hours and the database is still not
> open.
>
> Does any body have any clues, thoughts, ideas ?? Is there anyway I can
> see what exactly the dbms is up to ?
> The instance processes running are completely idle
>
> Thanx
> K Naik
>

Hi.

platform/version info please?
how large are your online redo logs?
are your archived redo logs on the same physical drives as your datafiles being recovered?
(thrashing on the drives)
how large was the transaction that was running when you did the shutdown abort?
recovery is the process of applying redo to roll forward (crash recovery), followed by rolling back failed transactions (transaction recovery).

you might have had better luck with killing the user process/thread than simply issuing the shotdown abort.

Paul

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