RE: log_buffer 10gr2

From: QuijadaReina, Julio C <QuijadJC_at_alfredstate.edu>
Date: Thu, 28 May 2009 10:01:49 -0400
Message-ID: <BB794FBF96457F46A52B68230BC23AF61579672D4F_at_mail4.alfredstate.edu>



14MB for log buffer appears to be the default I've seen when creating a database through dbca.

Julio Quijada

-----Original Message-----

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Bobak, Mark Sent: Thursday, May 28, 2009 9:50 AM
To: ujang.jaenudin_at_gmail.com; Oracle Discussion List Subject: RE: log_buffer 10gr2

Ok, first, take a step back.

What is motivating you to look at log_buffer in the first place? Why do you think it needs to be adjusted? Starting w/ 10g, the log_buffer is maintained by Oracle, and should not need to be adjusted. (See MetaLink Doc ID 351857.1.) What is the current value of _log_io_size? Why do you think you need to adjust it?

Main question:
What is it that is leading you to believe that log_buffer and _log_io_size need to be adjusted?

-Mark

-----Original Message-----

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Ujang Jaenudin Sent: Thursday, May 28, 2009 6:14 AM
To: Oracle Discussion List
Subject: log_buffer 10gr2

dear all,

I have 10.2.0.3 on solaris sparc,
when trying to decrease log_buffer, it could not be done.

always keep 14MB, sga is 3.5GB
I want to decrease it to 1MB

according to metalink note. 351857.1
it is expected behavior.

so, is it save to change _log_io_size to 1MB ?

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thanks and regards
ujang | oracle dba | mysql dba
http://ora62.wordpress.com
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http://www.freelists.org/webpage/oracle-l Received on Thu May 28 2009 - 09:01:49 CDT

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