You can follow the processes with this query. Sometimes you may find a dubious process eating up your resources. Usually some query from h!

SELECT sid, serial#, osuser, program FROM V$SESSION;

Ning Wong

-----Original Message-----
From: Patterson Joel
[mailto:oracledba-ezmlmshield-x96745458.[Email address protected]
Sent: Wednesday, January 04, 2006 11:08 AM
To: LazyDBA Discussion
Subject: RE: bouncing the db?


I can see SQLServer bouncing (windows :))

We also used to bounce DEC alpha 64 bit, and HP-UX Tru64 once per week
at old locations, (and sysadmins did like that -- actually they
instantiated the policy).

However, I don't really think that you should have to do that. Even on
Windows boxes we barely reboot ever here. Think of the 24/7 databases
out there, and especially RAC/GRID instances running 24/7. Sure there
you probably could reboot and keep the other instance up etc., but
something tells me you should not have to do this.

-----Original Message-----
From: Anthony Molinaro
[mailto:oracledba-ezmlmshield-x86509559.[Email address protected]
Sent: Wednesday, January 04, 2006 12:03 PM
To: LazyDBA Discussion
Subject: bouncing the db?

hello dba's,
I have a question that I am hoping you can help with.
We have different rdbms at my company and as expected
each one is treated differently.
from our experience (well, from the suggestion of sql server
consultants)
its good to bounce the sql server databases every so often.

now, I've never done this with oracle but I am wondering
if any of you have.
I am ofcourse aware of the various drawbacks to bouncing
the db (such as flushing the caches making all new sql hard parsed)
but it would be done at our maintenance window (so, no worries
about users and their sql).

over the last 6 months we've hit some bugs with oracle that neither
I nor oracle support have been able to really fix (we're talking
severity 1 tar here, so, very senior support analysts working with
me to resolve various problems as we got nowhere).

in some cases (magically) bouncing the db
(at the suggestion of support) has helped.
I'm not crazy about doing this all the time but if it saves me
from all-nighters and rebuilding production from standby via
failover (which is a total pain as our db's are ~1tb) then I'll do
it.
this would be a monthly thing or every other month.
so, we're talking 6 - 12 bounces a year.

any feedback (good or bad) would be appreciated.

thanks guys/gals,
Anthony



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Oracle documentation is here: http://tahiti.oracle.com
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