After Oracle is upgraded to 11.2.0.4, The NUMA warning is displayed in the alert Log.

After Oracle is upgraded to 11.2.0.4, The NUMA warning is displayed in the alert Log.

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After upgrading to 11.2.0.4, The NUMA warning is displayed in the alert Log.

Translated from mos: NUMA warning message appear after upgrade to 11.2.0.4 (Document ID 1600824.1) 1

Applicable:
Oracle Database-Enterprise Edition-Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms:
After upgrading to 11.2.0.4, the following warning information is generated after the database is started:

Changes:
Upgrade to 11.2.0.4

Cause:
By default, NUMA is disabled in 11.2, but if NUMA is enabled at your OS level and _ enable_NUMA_support = FALSE, Oracle will only detect (detect) instead of NUMA.

This is discussed in bugBug: 17475024. Closed as duplicate of Bug: 16613964 where alerts like below displayed on non-Exadata setup:

Solution:

-Apply Patch: 16613964 if available for your DBVersion and Platform.

Or Upgrade to 12.1 where the issus is fixed

No Workarounds are available