My Oracle Support Banner

RAC Instance Startup Fails With ORA-00439: Feature Not Enabled: Real Application Clusters (Doc ID 1964088.1)

Last updated on DECEMBER 20, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 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
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


Instance startup failing, reporting

ORA-01078: failure in processing system parameters
ORA-00439: feature not enabled: Real Application Clusters

The command
  ar -t $ORACLE_HOME/rdbms/lib/libknlopt.a|grep kcsm.o
returns no value, as per note
  Doc ID 284785.1 How to Check Whether Oracle Binary/Instance is RAC Enabled and Relink Oracle Binary in RAC


 In this case, customer had patched the oracle software and the relink on node was not successful.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.