Database Memory & 4030/4031 (MOSC)

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ORA-04030 with 9i on Aix

edited Apr 25, 2012 1:23PM in Database Memory & 4030/4031 (MOSC) 8 commentsAnswered
 Hi all,
   I meet a problem about PGA memory on Unix. I tried search on google to find a expected answer but not clearly.

   My OS is AIX 5.3 64 bit. Oracle 9.2.0.4 64 bit,. I have 8GB Ram and I allocated 5GB RAM to SGA (SGA=5G) and PGA = 810MB. All of works are ok but today, I meet a error: 

   ORA-04030: Out of process memory when trying to allocate xxx  bytes (hash-join subh, kllcqas:kllsltba).

   I think that I need increase PGA but after search some documents about 9i on Unix, some my friends have same problem and they decrease PGA and this error not occurs again ! I do not understand why decrease PGA memory, If PGA memory be decrease --> some works can slowly ? It is a bug on 9.2.0.4 or I need change on AIX OS ?

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