RE: Statspack (shared pool) memory leak

I ran it a bit more until I got a 4031, but it was because the = shared_pool
free memory kept increasing.

Henry

-----Original Message-----
From: oracle-l-bounce_at_freelists.org =
[mailto:oracle-l-bounce_at_freelists.org]
On Behalf Of Henry Poras
Sent: Tuesday, December 21, 2004 5:00 PM To: daniel.wittry_at_quest.com; oracle-l_at_freelists.org Subject: RE: Statspack (shared pool) memory leak

I just ran this script on a 10.1.0.2 database on Linux. Most loops lost =
=3D

41K of memory, but about every 5th to 10th loop, a large chunk of memory = was
added. If I have a chance I'll look a bit more carefully.

Henry

-----Original Message-----
From: oracle-l-bounce_at_freelists.org =3D = [mailto:oracle-l-bounce_at_freelists.org]
On Behalf Of Daniel Wittry
Sent: Tuesday, December 21, 2004 4:43 PM To: oracle-l_at_freelists.org
Subject: RE: Statspack (shared pool) memory leak

Oracle claims to have fixed the leak in 9.2.0.4 and 10g (Bug #3519807). (Mark - you're running 9205 and you confirmed the leak) I reOpened my =
=3D

iTAR and will press them harder this time for a fix. Is anyone on OraDev =
=3D

reading this?

Interesting enough, we traced ADDM and it does not use the x$ksolsfts structure, yet creates a horizontal structure for segment statistics =3D = that
is deallocated when ADDM exits. Maybe OraDev knows it leaks?

The long and short of it seems to be: when select * from v$segment_statistics is typed, 1400 bytes of shared pool goes poof! That smells bad. Granted, there are cases where we can run the query in a =
=3D test

loop and not leak memory, but it is unpredictable, even on the same =3D instance (and usually does leak).

__that's our findings

-----Original Message-----
From: Powell, Mark D [mailto:mark.powell_at_eds.com]=3D3D20 Sent: Tuesday, December 21, 2004 12:57 PM To: Daniel Wittry; oracle-l_at_freelists.org Subject: RE: Statspack (shared pool) memory leak

I ran your script a dozen times or so (9.2.0.5 64 bit RAC on AIX 5.2) =
=3D and

sure enough 04031 errors starting poping up. Unfortunately I do not =3D = have
any more time to look at this, but perhaps one of the board guru's will look. I was wondering if you have brought this issue to Oracle support attention?

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