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RE: Shared pool from 8i to 9i

From: Subbiah, Nagarajan <Nagarajan.Subbiah_at_aetn.com>
Date: Thu, 27 Jan 2005 12:17:12 -0500
Message-ID: <30462D80AA52E74698512ADCC4F7EAA31CC17C39@exchange.aetvn.com>


Thanks, Everyone. We have reduced the SGA size and waiting for the two other OS kernal config changes to be done by our SA.

One is the data limit is very low (ulimit -a) and the other one filesystem buffer has been assigned as 50% default for the server. I hope this will resolve the ORA-4030 error we are getting.

Thanks, Again!

Raja.

-----Original Message-----
From: Mladen Gogala [mailto:mgogala_at_allegientsystems.com] Sent: Tuesday, January 25, 2005 9:51 AM
To: Nagarajan.Subbiah_at_aetn.com
Cc: 'Alexander Gorbachev'; Wolfgang Breitling; Paula_Stankus_at_doh.state.fl.us; DGoulet_at_vicr.com; BSpears_at_Limitedbrands.com; Michael.Kline_at_SunTrust.com; oracle-l_at_freelists.org Subject: Re: Shared pool from 8i to 9i

Subbiah, Nagarajan wrote:

>
>Can we have different sub pools of shared pool and specify the range
>for the SQL size to go to the particular sub pool? I know that the
>shared_pool_reserved_min_alloc parameter helps to certain extent. Is
>there any view to find out what is the usage of the reserved size of
>the shared_pool and how to find out the optimal value of the
>shared_pool_reserved_size?
>
>

Raja, take a look at the V$SHARED_POOL_RESERVED. It contains column "LAST_ABORTED_SIZE".
It will tell you the size of the last request for the reserved allocation that failed. You also have a column about aborted requests to tell you how many aborted requests were issued. Note that this is a RESERVED allocation. It doesn't automatically mean 4031. Also, there is a table called V$SHARED_POOLwhich is gone in 10g, probably because oracle thinks that you should pay for being able to estimate the size of your shared pool. In 10g it is called DBA_HIST_SHARED_POOL_ADVICE <http://localhost/oradoc/ora10.1.0/server.101/b10755/statviews_2151.htm#sthr ef1843>
and, as any "DBA_HIST" table should not be used without license. Enjoy while you can.

-- 
Mladen Gogala
Oracle DBA
--
http://www.freelists.org/webpage/oracle-l
Received on Thu Jan 27 2005 - 12:20:22 CST

Original text of this message

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