Re: _disable_logging=true and ORA-00353 question

  • From: amonte <ax.mount@xxxxxxxxx>
  • To: juancarlosreyesp@xxxxxxxxx
  • Date: Sat, 13 May 2006 11:40:23 +0200

Didnt you ask this same question like 3 or 4 months ago?





On 5/12/06, Juan Carlos Reyes Pacheco <juancarlosreyesp@xxxxxxxxx> wrote:

**important _disable_logging is an advanced parameter and you should not be set** Hi please, in my test of upgrades I was using _disable_logging, to understand how it works. I had to do an upgrade from 9.2 to 9.2.0.4 to 10.2.

I'm not thinking in use on production. I only want to understand it.

I enabled it in the upgrade process and disable after the next upgrade
step.
Every thing was ok.
Finally once migrated  having _disable_logging=false
I run a long script which run correctly and at the end of the script,
I suppose in the moment of a logswitch, I got the following error:

ORA-00354: corrupt redo log block header
ORA-00353: log corruption near block 2 change 105990334 time 05/11/2006
09:06:19
ORA-00312: online log 2 thread 1: 'E:\ORASERP\LOGFILES\LOG_2SERP.ORA'
ORA-00312: online log 2 thread 1: 'D:\ORASERP\LOGFILES\LOG_2SERP.ORA'

I tried an ALTER DATABASE CLEAR UNARCHIVED LOGFILE
'E:\ORASERP\LOGFILES\LOG_2SERP.ORA'; and I received a message the file
don't exists

Why does it happen?
I suppose if I would had done an ALTER SYSTEM SWITCH LOGFILE;
or an ALTER DATABASE CLEAR UNARCHIVED LOGFILE
'E:\ORASERP\LOGFILES\LOG_2SERP.ORA';
In some moment, this problem wouldn't had happen.

But I can't get it, why if everything was ok, in the moment of switch
it get an error log corrupt.

Thank you :)
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