RE: ora-4031 & large_pool

  • From: "Bobak, Mark" <Mark.Bobak@xxxxxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 18 May 2004 16:21:08 -0400

Are you using Oracle XA by any chance?  It also requires a large pool.

-Mark

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Terry Sutton
Sent: Tuesday, May 18, 2004 3:54 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: ora-4031 & large_pool


One of our clients is getting the following error occasionally on a =
9.2.0.3 DB:
ORA-04031: unable to allocate 8704 bytes of shared memory ("large =
pool","unknown object","hash-join subh","kllcqas:kllsltba")

The large pool is set at 16M, which isn't high, but they shouldn't be =
using the large pool at all.  The don't use MTS, they don't use parallel =
query or have parallel_automatic_tuning set to true, and they don't use =
RMAN.  AFAIK, those are the only things which use the large pool.

Any ideas?

--Terry

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