Re: SNAPSHOT REFRESH
- From: Jared.Still@xxxxxxxxxxx
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 9 Aug 2004 10:21:03 -0700
> Seema,
>
> I have seen this happen when you refresh instances and use DBMS_JOB to
> refresh your materialized views (AKA snapshots). What usually happens
is
> that just after you open the database (after creating the control file
of
> the new instance and perform any recovery if hot backup was used) the
> DBMS_JOB runs and refreshes the MV's in the new instance and resets the
MV
> logs on the source (usually production!).
>
> If this is your case then include an 'ALTER SYSTEM SET
JOB_QUEUE_PROCESSES =
> 0;' in your rebuild script just before you issue the 'ALTER DATABASE
OPEN
> [RESETLOGS];' statement. Once the DB is open then include a step to
drop
> the DBMS_JOB that refreshes the MV's and then issue an 'ALTER SYSTEM SET
> JOB_QUEUE_PROCESSES = n;' where n is the value that you would like to
run in
> your non-production instances.
>
> Good Luck!
>
> -f
>
Good info Faan. I think I may have recently shot myself in the foot with
that
during recovery testing. Time to update the docs. :)
Jraed
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