replication with Indexes 2004-05-26 - By Stephen.Lee@(protected)
I suppose I should, for the sake of completeness, say that a replicated
database isn 't quite the same as a standby database. If the primary blows
up, then you will only have data in secondary up to the point that that last
replication cycle ran. But I figured you already knew that. If you try to
replicate "too often " (like every ten seconds), you 'll probably kill
performance. You don 't want to set the time between replication cycles to
be too long either since the MLOG$ tables can grow which (I think, but not
absolutely positive) slows down replication because your updates scan the
MLOG$ tables up to the high water mark. If for some reason, you can 't
replicate for a while, and your MLOG$ tables get huge, I 've had success
rebuilding them online.
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
To unsubscribe send email to: oracle-l-request@(protected)
put 'unsubscribe ' in the subject line.
--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
|
|
