RE: Thread 1 cannot allocate new log

Archiving is on, the archive log files are backed up nightly with the hot backups, plus I have a script that checks the available disk space, and sends them off to tape when the drive is 75% full.

Never run out of space.

Robyn

"Gogala, Mladen" <MGogala_at_oxhp.com> on 06/12/2000 03:21:48 PM

Please respond to ORACLE-L_at_fatcity.com

To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> cc: (bcc: Robyn Sands/US1/Lend Lease)

Subject: RE: Thread 1 cannot allocate new log

Er, a stupid question: how do you do backup of your archived redo files and is your archiver running? Is it running out of space to archive redo logs?

-----Original Message-----
Sent: Monday, June 12, 2000 11:25 AM
To: Multiple recipients of list ORACLE-L

Listers,

What's the best approach to deal with the archiver not keeping up with the redo
log switches? Currently, redo logs are 20 MB, originally had four groups. We
have one process that runs twice a day and results in one or two 'cannot allocate new log' errors. The switch occurs seconds later without causing the
update to fail, and the process completes in less than 10 minutes. Tried increasing the size of the logs, no improvement. Added two more log groups, errors stopped for a time, but then reoccurred. This process populates a denormalized table for queries, and the problem began after additional data was
added to the base tables. Typically, I see only 4 to 12 switches within a 24
hour period, so I'm not sure if I should continue to added more groups or increase the size. If I increase the size, should I worry about checkpoints occurring too infrequently? (Only occur at log switches now). Both copies of
the redo logs and the archived redo logs are all on separate disks.

Robyn

Lend Lease REI
Atlanta, GA

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