mark
very interesting.can you explain. is the ulimit which
we are talking here or something very different from
this
sai
--- Mark Brooks <[EMAIL PROTECTED]> wrote:
> Check the setting for per process memory limits at
> the AIX level. In 4.3
> there is a bug that allowed processes to exceed
> there memory allocations.
> The bug is fixed in 5L so the per process memory
> limits are now enforced. We
> ran into this on our first upgrade to 5L and the
> symptom was 4031 errors
> from processes that ran just fine on 4.3.
>
> Mark...
>
> -----Original Message-----
> Sai Selvaganesan
> Sent: Saturday, June 07, 2003 11:50 AM
> To: Multiple recipients of list ORACLE-L
>
>
> hi
> we have upgraded a database from 8.1.7.4 on aix 4.3
> to
> 9.2.0.3 on 5l and was running fine for the past two
> weeks.
> it all started day-before-yesterday when job queue
> coordinator started thrwoing 4031 errora and dbwr
> crashed eventually. we increased the shared pool and
> again the crash happened the next day.
>
> in 8i the shared memory was 120M and i had a shared
> memory of 200Mb initally in 9i (dont know why??)
> ,later increased to 300mb after the first crash,then
> to 650mb after the second crash(oracle's
> suggestion).oracle send me some events to be set in
> init.ota for 4031 errors and the trace that
> generated
> it seems has very little info to debug..not
> surprised..job queue coordinator,apparently wakes up
> every 5 seconds and there is some bug filed
> regarding
> excessive usage of sga by job queue coordinator.
> oracle suggested about the _job_queue_interval
> parameter and i went ahead and put that in setting
> it
> to the same value as in 8i. oracle sent me a script
> which added sharable_mem from v$db_objcect_cache and
> v$sqlarea and told me that i have to double the
> shared
> memeory. i dont hv a clue though i think this is not
> a
> right way to check the shared pool size. also the
> application is the same.nothing has changed and the
> number of processes in the database at any point of
> time is less than 50!!! does 9i require 5 times the
> size of share pool of 8i ????
> has anyone faced this kind of issue? i have been
> sitting in front of the system for the past two days
> trying to figure out what is happening? cant
> question
> oracle..but why really mess around with job queue
> processes when that simple daemon has been working
> fine in all versions?
>
> anycase,gurus please help me out on this.
>
> thanks
> sai
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.net
> --
> Author: Sai Selvaganesan
> INET: [EMAIL PROTECTED]
>
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> --
> Author: Mark Brooks
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--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Sai Selvaganesan
INET: [EMAIL PROTECTED]
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Received on Sat Jun 07 2003 - 22:59:11 CDT
