Jim,
No, since 7.3 SMON does the rollback in the background
upon startup. If a user session attempts to access a
row that is part of an uncommitted transaction that
needs rolling back then that user session will take
over the rollback of that transaction.
HTH,
- Anita
- "HAWKINS, JAMES W [IT/1000]"
<james.w.hawkins_at_pharmacia.com> wrote:
> If you did a "shutdown abort", wouldn't you still
> have to wait for the
> rollback to happen during instance recovery on the
> startup? I've never
> tried this - I usually just suffer through the
> rollback.
>
> Jim
>
> __________________________________________________
> Jim Hawkins
> Oracle Database Administrator
> Data Management Center of Expertise
>
> Pharmacia Corporation
> 800 North Lindbergh Blvd.
> St. Louis, Missouri 63167
> (314) 694-4417
>
> james.w.hawkins_at_pharmacia.com
>
>
> -----Original Message-----
> Sent: Tuesday, August 07, 2001 8:21 AM
> To: Multiple recipients of list ORACLE-L
>
>
> You should wait for PMON ending its job of rollback
> the transaction of that killed session. Since one of
> the releases of 8i that duty is a new one for the
> SMON.
>
> You have few options. If you are in a hurry, you
> could
> do shutdown abort. First issue an alter system
> checkpoint; just in case a maybe possible recover
> problem later. You see that it is a little risky.
> With
> a shutdown immediate, you might wait a lot. Even
> that
> you could afford it because of the dangerous of the
> abort option. The other is to issue through svrmgrl
> or
> sqlplus depending on the release an
>
> oradebug wakeup <orapid of PMON or SMON depending on
> the release>
>
> However there is a little chance that with this you
> could hurry the PMON for the rollback of the
> transaction.
>
> You can see how much work the PMON or SMON have to
> do
> through v$transaction:
>
> select b.sid,a.used_ublk from v$transaction
> a,v$session b
> where addr=taddr and b.status='KILLED';
>
>
> Regards.
>
>
> --- Andrey Bronfin <andreyb_at_elrontelesoft.com>
> wrote:
> > Dear all !
> > I have killed a session while it was populating a
> > big table.
> > Now the session is marked KILLED in v$session.
> > It's serial# is keeping being incremented , so i
> > assume that a rollback (of
> > rows inserted into that big table by that session)
> > is going on there in the
> > background.
> > This rollback runs for several hours already
> > preventing me from DMLing that
> > big table.
> > Is there a way to stop that rollback / drop /
> > truncate that table ?
> > Thanks a lot in advance .
> > Andrey.
> > --
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> > http://www.orafaq.com
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> > Author: Andrey Bronfin
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> INET: james.w.hawkins_at_pharmacia.com
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Received on Tue Aug 07 2001 - 09:29:26 CDT
