Re: limit oracle memory

From: Matthias Hoys <>
Date: Sun, 26 Jul 2009 18:43:22 +0200
Message-ID: <4a6c87c0$0$2855$>

"NetComrade" <> wrote in message
> On Sat, 25 Jul 2009 07:37:17 -0700 (PDT), Mark D Powell
> <> wrote:
>>How much real memory does the server have?
>>What memory settings have you used for each database instance?
> 16G ram, 16G swap
>>Where do your applications run?
> on other servers.
>>What type of applications are these databases supporting?
> mostly jboss.
>>Any applications other than databases and normal OS processes running
>>on the server?
> no, but there are tons of scripts/"batch jobs"
>>Have the administrator take a look at the sar data history. This
>>should help determine if this was a one time issue caused by something
>>running or if you have had a trend where spare capacity was declining.
> It was a one time issue. It happens once every few months and very
> quickly, if it was a trend swap monitors would've caught it.
> SGA max is under 2G
> PGA target is 2G
> sessions are limited to 555, but normally hovers around 100.
> total processes hover around 140-150
> -a
> .......
> We run Oracle 9iR2,10gR2, 10g2RAC on RH4/RH5 and Solaris 10 (Sparc)
> We use RMAN and remote catalog for backups

You say "it happens once every few months". Maybe there is some script scheduled in cron that runs at that time and causes the problems? Or a job scheduled in Oracle?

Matthias Received on Sun Jul 26 2009 - 11:43:22 CDT

Original text of this message