"_enable_NUMA_support" = true on Exadata causes PX message buffers to come out of the numa pool; possible ORA-12805/ORA-4031
(Doc ID 2378765.1)
Last updated on OCTOBER 23, 2019
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
In 12c+, when PX message buffers come out of the numa pool, it is possible to see ORA-12805/ORA-4031 errors like the following if there is not enough room in the shared pool:
You are running RDBMS version 220.127.116.11 or higher on Exadata.
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