Re: hung db

From: De DBA <dedba_at_tpg.com.au>
Date: Sat, 09 Jan 2016 13:26:48 +1000
Message-ID: <56907DF8.7010204_at_tpg.com.au>

Usually I'd suspect an out-of-memory situation. The scenario reminds me of a case I had where the backup software (Tivoli, I think), would use Windows shadow copy to execute an RMAN backup. The shadow copy process never exited and after a (large) number of backups the Oracle process memory was exhausted and the database hang. From memory that was also W2K8R2/11.2.0.3. I believe there was a bug in the Oracle shadow copy interface.

You did check the Windows Event Logs (Application and System) I presume?

Hth,
Tony

On 09/01/16 11:03, MJ Mody wrote:
> Nothing like ringing in a new year than with a hung database.
> In this case, running 11.2.0.3 EE with ASO/TDE on W2K8-R2 with last CPU.
> From what is known, external backups (tape writes) were taking place in backup software, both rman and data pump (the .dmp files were created early in the evening). Additionally, nightly EOD processing was also taking place.
>
> Performed a server reboot to bring the database online. Point of concern is from 9pm onwards, until the database came back online (~1:30am), there is no entries in the alert log.
>
> Feel free to share if anyone has come across this or have some words of wisdom for troubleshooting and remediation.
>
> Thank you in advance.
>
> Best
> MJ--
> http://www.freelists.org/webpage/oracle-l
>
>
>

--
http://www.freelists.org/webpage/oracle-l

Received on Sat Jan 09 2016 - 04:26:48 CET