RE: Rash of shared memory errors

Thanx, everyone, for replying so quickly! We're on 8.1.7.1 (sorry for omitting that in my OP). I'll look for the patch straight after this.

Rahul and Connor, when you say the cause may be that the application is not using bind variables, do you mean that the application is using dynamic SQL, and thus almost every call to the DB during application execution is different, thus limiting query reuse? If that's the case, then this is not the cause in our app, as we don't use dynamic SQL at all. However, if you mean another way of not using bind variables, but in static queries, then could you please explain how this could be done, so I can check our app?

Thanx very much.

-arn

>>> rahul_at_ratelindo.co.id 21/9/2001 23:05:22 >>> This message has been scanned by MAILSweeper.

i would take a look at the application before increasing the size

> ----------
> From: Mercadante, Thomas F[SMTP:NDATFM_at_labor.state.ny.us]
> Reply To: ORACLE-L_at_fatcity.com
> Sent: Friday, September 21, 2001 7:50 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: Rash of shared memory errors
>
> Arn
>
> A shared pool size of 16 Meg is not large enough. This error clearly
> indicates that you are out of memory.
>
> It may be larger than your test and maintenance db, but it is not large
> enough for your developers.
>
> I don't know about you, but I have more developers on my Dev instances
> than
> testers on my testing instance! My shared pool value in my Dev instance
> is
> 80Meg, and I never get this error.
>
> Try increasing your shared pool to at least 50 Meg and see if the problem
> goes away.
>
> Hope this helps
>
> Tom Mercadante
> Oracle Certified Professional
>
>
> -----Original Message-----
> Sent: Friday, September 21, 2001 3:55 AM
> To: Multiple recipients of list ORACLE-L
>
>
> Hi,
>
> Just recently, we have been frequently receiving errors like the following
> in our development database:
>
> ERROR:
> ORA-04031: unable to allocate 4096 bytes of shared memory ("shared
> pool","BEGIN
> DBMS_OUTPUT.DISABLE; E...","PL/SQL MPCODE","BAMIMA: Bam Buffer")
>
> The size of our shared pool is not too small (I think); it's larger than
> our
> test and maintenance databases, for example.
>
> shared_pool_reserved_size string 800000
> shared_pool_size string 16000000
>
> What could be causing this level of frequent fragmentation? We have been
> developing a new application in the database, but this has been ongoing
> for
> some months; the errors appeared only in the last week or so.
>
> What should I be looking for to solve this?
>
> Thanx for any advice.
>
> -arn
>
>
>
>
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> Author: Arn Klammer
> INET: Arn.Klammer_at_austrac.gov.au
>
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-- 
Author: Rahul
  INET: rahul_at_ratelindo.co.id 

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