RE: alert log retention

  • From: "Patterson, Joel" <jpatterson@xxxxxxxxxx>
  • To: "veeeraman@xxxxxxxxx" <veeeraman@xxxxxxxxx>, ORACLE-L <oracle-l@xxxxxxxxxxxxx>
  • Date: Mon, 3 Jun 2013 09:36:35 -0400

I have a cron script that renames the alert log every Sunday morning, and keeps 
6 weeks worth.

One nice thing about keeping the live alert log small is if you wish you can 
over time implement some jobs, perhaps via EM that help you see all the alert 
logs at the same time.  I can run a job that reads from an external alert log 
table on every database and the output is in one file where I can page through.

I modified that though from an idea I found I believe on this list that uses a 
pipelined function to display the data -- and that function now calls another 
that filters out noise Like:

'Incremental restore complete of datafile'  I have about 20 such statements it 
skips, so I can scan the data fairly quickly especially on Mondays.   Of course 
you can always just select * from ext_alert_log and get everything.   It's a 
good start in creating an external table as there is only one field, and there 
is actually a convenient use for it.   You just have to make it a convention 
and put it in every database.

Joel Patterson
Database Administrator
904 928-2790

Joel Patterson
Sr. Database Administrator | Enterprise Integration
Phone: 904-928-2790 | Fax: 904-733-4916!/entint

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From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Ram Raman
Sent: Friday, May 31, 2013 2:01 PM
Subject: alert log retention

How long do the listers keep their alert log data for? does it vary in 
production vs dev environments.




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