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see ORA-12699
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Re: 10g expdp hang/spin win32 ora-600 [504] (in testing)

Christo Kutrovsky

2005-10-21

Replies:
I am curious as to how a failed statspack job can cause this ?

And if not for production monitoring, where would you run statspack :)

Christo


On 10/21/05, Paul Drake <bdbafh@(protected):
> On 10/21/05, Paul Drake <bdbafh@(protected):
> > Has anyone come across a hang/spin condition with datapump exports?
> >
> > Standard Edition 10.1.0 patchset 2 (10.1.0.4) + 10.1.0.4 patch 5.
> > w2k adv server sp4
> > quad xeon (PIII)
> >
> > pegged 4 cpus on single user database, single database on the server
> > running an expdp.exe job (full=y).
> >
> > Shared servers are configured for this database due to VPN issues, but
> > the expdp session is connected to a dedicated server process (thread).
> >
> > receiving ora-600 [504] [address] [32] [4] [row cache objects] [10] [2] [0x0]
> >
> > Since this is testing I'll hold off until next week to open an iTAR.
> >
> > A hanganalyze did not yet complete.
> > The job still appears to be in progress, so its not completely fubared.
> > A trace file is being generated by a backround job that appears to be
> > a statspack snapshot.
> > Is it just me, or is statspack in 10g not something that is meant for
> > usage anymore?
> > (wide open hole for soliciting signatures for Niall's post concerning ASH).
> > I've seen a perfstat.statspack.snap collide with AMM causing major
> > amounts of grief in 10.1.0.4 on win32 at least 3 separate times
> > (disabled both now) and have seen at least 2 other posters here
> > complain about shared_pool latching issues related to that
> > combination.
> >
> > This is not how I planned to spend my afternoon.
> > I had hoped to sneak out to a theater to catch DOOM (the movie) - not
> > doom, return of the ora-600.
> >
> > thanks.
> >
> > Paul
> >
>
> A failed background job executing a statspack.snap was the root cause.
>
> datapump exports now run fine without issue.
>
> The fix was brutally simple and did not require downloading a patch or
> regression testing:
>
> SQL> @?/rdbms/admin/spdrop.sql;
>
> I've concluded that scheduled statspack snapshots just plain do not
> belong in a production database, at least for win32 10.1.0.4, even
> with statistics_level='BASIC'; and AMM not in use.
>
> Paul
> --
> http://www.freelists.org/webpage/oracle-l
>


--
Christo Kutrovsky
Database/System Administrator
The Pythian Group
--
http://www.freelists.org/webpage/oracle-l