Re: ora-3113 related to histograms? 11gr2

  • From: David Roberts <big.dave.roberts@xxxxxxxxxxxxxx>
  • To: andrew.kerber@xxxxxxxxx
  • Date: Sat, 2 Oct 2010 14:27:28 +0100

My expectation would be, lack of histogram = different execution plan.

Thus it would be my expectation that one of the execution plans (The one
chosen in the absence of histograms) is either hitting an unrecognised
corrupt index or table.

It's a guess, but I'd try to identify the execution plans with
and without the histogram statistics and work from there!

Dave

On Wed, Sep 29, 2010 at 7:51 PM, Andrew Kerber <andrew.kerber@xxxxxxxxx>wrote:

> This one is really strange.  We are running peoplesoft on Oracle 11Gr2 on
> Linux x86_64.  Periodically we get ORA-3113 errors (network disconnect) from
> one of our queries running from the app server to the database.  It appears
> to happen when histograms are not present on the table.  When they are
> present, the problem rarely, if ever occurs.  Can anyone give us idea why
> this may be happening?  MOS noticed the correlation, but no one has figured
> out the cause, or a true fix.  I am planning on setting
> _OPTIM_PEEK_USER_BINDS=FALSE and see what difference that makes, but best
> case, that would only keep the problem from happening, not show us a cause.
> We also get a ORA-3137 TTC protocol internal error, but that appears to be
> on the app server side caused by the ORA-3113.
>
> --
> Andrew W. Kerber
>
> 'If at first you dont succeed, dont take up skydiving.'
>

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