Re: log buffer space

AK,

Could you provide the redo log sizes and the log_buffers parameters, please. Also let us know the log switch frequency, too.

Thanks.

Arup

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Friday, March 14, 2003 11:14 AM

> Do you guys think , adding more log file can help ? I think it should not
,
> cuz any way logwriter is going to write in one datafile at a time ,
correct
> ?
>
> -ak
>
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Friday, March 14, 2003 4:32 AM
>
>
> > Arup:
> >
> > <NO FLAMES>
> > The second condition is not quite true. It is 2/3 full in the current
> > versions.
> > </NO FLAMES>
> >
> > It is very easy to test with the event 10046^8.
> >
> > KG
> >
> >
> > --- Arup Nanda <orarup_at_hotmail.com> wrote:
> > > AK,
> > >
> > > If the log buffer is at least 4MB, then increasing it will not help,
> > > rather it may hurt. The log buffer is flushed when any of the the
> > > follwoing occur
> > > (i) 1 MB is filled up
> > > (2) 1/3rd is filled up
> > > (3) every 3 seconds
> > > (4) when a checkpoint occurs
> > > (5) when a commit occurs.
> > >
> > > Therefore, see if any of these could be the problem. It's easy to
> > > check #s 4 and 3.
> > >
> > > As Kirti suggested, the problem could be due to the redo logs being
> > > on a busy disk, or even a slow one.
> > >
> > > HTH.
> > >
> > > Arup
> > > ----- Original Message -----
> > > From: Deshpande, Kirti
> > > To: Multiple recipients of list ORACLE-L
> > > Sent: Thursday, March 13, 2003 8:13 PM
> > > Subject: RE: log buffer space
> > >
> > >
> > > Increasing log_buffer size is an option, if it is really small.
> > > I would also check if the redo logs are on a busy disk. If so, try
> > > moving those (or other busy data files on the same disk) to other
> > > not-so-busy disks.
> > >
> > > - Kirti
> >
> >
> > =====
> > Have a nice day !!
> > ------------------------------------------------------------
> > Best Regards,
> > K Gopalakrishnan,
> > Bangalore, INDIA.
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > --
> > Author: K Gopalakrishnan
> > INET: kaygopal_at_yahoo.com
> >
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> Please see the official ORACLE-L FAQ: http://www.orafaq.net
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> Author: AK
> INET: oramagic_at_hotmail.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Arup Nanda
  INET: orarup_at_hotmail.com

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