Re: v$access + latch free(library cache) BUG???
- From: "LiShan Cheng" <exriscer@xxxxxxxxx>
- To: sjaffarhussain@xxxxxxxxx
- Date: Mon, 27 Feb 2006 18:56:28 +0100
This is one of those tipical situation where one is totally lost!
On 2/27/06, The Human Fly <sjaffarhussain@xxxxxxxxx> wrote:
>
> Hello list,
>
> We have faced a very very strange problem when accessing or desc v$access
> table.
>
> Database : Oracle 9i Rel.2 (9205)
> OS : AIX 5.3 JFS2 Filesystem.
> CPU = 30+
> No. Connections = 1000+
>
> We are facing problem with latch free (cache buffer chains), when the
> problem occurs, cpu becomes 0% ideal and we kill some process from
> which transaction are coming.
>
> I just desc v$access from the sql prompt, and strangly, all the
> session are started waiting on 'latch free' and this time its was
> library cache and when I kill the session which was desc v$access,
> then, everything comes normal.
>
> It was not just an accident, I can still reproduce the same error.
> Whatever action I do on v$access, this is causing. If this was a bug,
> we have same OS server, same oracle version for another database,
> where this doesn't happens. The only differene between these two
> databases are just no. of cpus.
>
> It is really drawing me crazy. Does anyone has experience the same?
>
>
> --
> Best Regards,
> Syed Jaffar Hussain
> 8i,9i & 10g, OCP DBA
> Banque Saudi Fransi,
> Saudi Arabia
> http://jaffardba.blogspot.com/
>
> ----------------------------------------------------------------------------------
> "Winners don't do different things. They do things differently."
> --
> //www.freelists.org/webpage/oracle-l
>
>
>
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