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ORA-04030: out of process memory

ORA-04030: out of process memory

2004-11-05       - By Sriram Ramachandran

We are on Apps 11i/DB 9.2.0.5 on Windows 2000 Advanced
Server.

Recently i upgraded the database from 8.1.7.4 to
9.2.0.5 and i started seeing the following error
message in the alert.log:-

Errors in file
f:\oracle\proddb\9.2.0\admin\prod_oradb\udump\prod_ora_2840.trc:
ORA-04030 (See ORA-04030.ora-code.com): out of process memory when trying to
allocate 917536 bytes (joxcx callheap,ioc_allocate
ufree)

This usually happens when the memory usage exceeds
2.5GB. The machine is a 4 CPU, 4GB(with the /3GB
switch turned on).

Oracle support suggests that i use orastack to modify
the default stack size of a thread/session.

Currently it is set as follows:-

Current Reserved Memory per Thread = 1048576
Current Committed Memory per Thread = 4096

I 'm planning to reduce it to 500K.

Has anyone tried changing the default stack size on 9i
and what are your experiences? Metalink note: 46001.1
has the details for orastack.

Thanks,
Sriram

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