Re: RAC Failing after O/S patch

Hi Bill

Assuming there are no leftover shared memory segments (ipcs) and the linux kernel parameters are as per 10gR1 recommendations, you can try reducing the db_cache_size and see if helps ?

-Rajeev

On 2/28/07, William Wagman <wjwagman_at_ucdavis.edu> wrote:
>
> Greetings,
>
> I am running a 2 node RAC cluster on Oracle Standard Edition 10.1.0.4.0,
> database is on ASM and CRS is 10.1.0.4.0 also. The O/S is RHEL3. Last
> week we upgraded from 2.4.21-32.0.1.Elsmp to 2.4.21-47.0.1.Elsmp and now
> in one of the two instances am seeing the following errors in the
> database instance (not the ASM instance) alert log and the trace files
> being generated...
>
> Wed Feb 28 07:46:46 2007
> Trace dumping is performing id=[cdmp_20070228074646]
> Wed Feb 28 07:47:29 2007
> Timed out trying to start process PZ99.
> Wed Feb 28 07:47:29 2007
> Errors in file /opt/pkg/oracle/admin/mothra/bdump/mothr1_ora_24179.trc:
> ORA-00603: ORACLE server session terminated by fatal error
> ORA-27504: IPC error creating OSD context
> ORA-27300: OS system dependent operation:sendmsg failed with status: 12
> ORA-27301: OS failure message: Cannot allocate memory
> ORA-27302: failure occurred at: sskgxpsnd1
> Wed Feb 28 07:47:30 2007
> Trace dumping is performing id=[cdmp_20070228074730]
>
> The errors are only appearing on node 1. I have searched Metalink and
> the web and found references to these errors but nothing which matches
> this situation. I am still waiting to hear from the sysadmin as to
> whether or not he has seen any reports of the O/S encountering memory
> problems.
>
> I would appreciate any thoughts as to what to look at or suggestions as
> to how to track down the error. So far Oracle has been unresponsive.
>
> Thanks.
>
> Bill Wagman
> Univ. of California at Davis
> IET Campus Data Center
> wjwagman_at_ucdavis.edu
> (530) 754-6208
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

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