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Oracle RDBMS is not detecting NUMA Nodes (Doc ID 868642.1)

Last updated on JANUARY 30, 2022

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Linux x86
Linux x86-64

Symptoms

You are running on a NUMA capable Hardware and your Operating System is NUMA aware and well configured. You can check this by executing: 'numactl –hardware' OS command and obtaining an output like:


Having 'NUMA PG = 1' it means that your Oracle RDBMS is looking for just one Processor Group and then NUMA is disable. You should have Numa PG >1






Cause

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In this Document
Symptoms
Cause
Solution
References

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