RE: archived log switch - detecting who’s causing excessive redo generation

Even though the problem has been resolved, I am still researching for methods 
to better identify and came across this.

Oracle Troubleshooting with Snapper – detecting who’s causing excessive redo 
generation

http://blog.tanelpoder.com/2008/05/30/oracle-troubleshooting-with-snapper-detecting-whos-causing-excessive-redo-generation/
________________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] On Behalf 
Of Tim Gorman [tim@xxxxxxxxx]
Sent: Friday, June 17, 2011 3:59 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: archived log switch

Michael,

The only session-level redo information is the real-time information in 
V$SESSTAT;  I don't think there is anything usable in AWR.  Query V$SESSTAT 
(via a join from V$STATNAME for the statistic name via the column STATISTIC#) 
for a statistic like "redo size" in order to identify a session (or sessions) 
generating a lot of redo, the join back to V$SESSION and figure out to whom 
that session (or those sessions) belongs, what it is executing, etc.

Good luck!

Tim Gorman
consultant -> Evergreen Database Technologies, Inc.
postal     => 13087 West Cedar Drive #225, Lakewood CO 80228
website    => http://www.EvDBT.com/
email      => Tim@xxxxxxxxx<mailto:Tim@xxxxxxxxx>
mobile     => +1-303-885-4526
fax        => +1-303-484-3608
Lost Data? => http://www.ora600.be/ for info about DUDE...


On 6/17/2011 4:27 PM, Michael Dinh wrote:
All of a sudden, we are experiencing 10x the number of archived logs switch

Does anyone have ideas on how to identify what is causing so many archived logs?

Thanks.

Michael Dinh

NOTICE OF CONFIDENTIALITY - This material is intended for the use of the 
individual or entity to which it is addressed, and may contain information that 
is privileged, confidential and exempt from disclosure under applicable laws.  
BE FURTHER ADVISED THAT THIS EMAIL MAY CONTAIN PROTECTED HEALTH INFORMATION 
(PHI). BY ACCEPTING THIS MESSAGE, YOU ACKNOWLEDGE THE FOREGOING, AND AGREE AS 
FOLLOWS: YOU AGREE TO NOT DISCLOSE TO ANY THIRD PARTY ANY PHI CONTAINED HEREIN, 
EXCEPT AS EXPRESSLY PERMITTED AND ONLY TO THE EXTENT NECESSARY TO PERFORM YOUR 
OBLIGATIONS RELATING TO THE RECEIPT OF THIS MESSAGE.  If the reader of this 
email (and attachments) is not the intended recipient, you are hereby notified 
that any dissemination, distribution or copying of this communication is 
strictly prohibited. Please notify the sender of the error and delete the 
e-mail you received. Thank you.
-- http://www.freelists.org/webpage/oracle-l
--
http://www.freelists.org/webpage/oracle-l

Other related posts: