This weekend we upgraded from 8.1.7.4 32-bit to 10.1.0.5 64-bit (AIX
5.2) and we are experiencing a large number of 4031 errors(these were
extremely rare under 8). We have contacted Oracle support as a sev 1
issue, but I thought I would drop a note to see if anyone has
experienced anything like this while we wait. Under 8 our shared pool
was approximately 250m. We initially set the shared pool to 1.2g under
10 and that was not enough. In the interim, we decided to increase the
shared pool to 3g to see if we can buy some time while we continue to
wait (and that has been successful so far). We do have some literal sql
and some opportunities for improvement, but I would think we should
experience "somewhat" similar behavior in terms of memory usage with the
upgrade vs. the prior version. The amount of memory seems very
excessive to me. In addition, we are not using the memory autotuning
featur e. Anybody know of a bug related to excessive shared pool usage
or any other thoughts? Thanks
__________________________________________________
Tracy Rahmlow | Lead Database Analyst
Information Systems
Ameriprise Auto & Home Insurance
AMEX Assurance Company
IDS Property Casualty Insurance Company
3500 Packerland Drive | De Pere, WI 54115-9070
Office: 920.330.5164 | Fax: 920.330.5350
tracy.rahmlow@xxxxxxxx
ameriprise.com/autohome
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