FLEXASM: Unable to Start CRS After Reboot ORA-12537 (Doc ID 2294385.1)

Last updated on AUGUST 15, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

This Document is applicable only for FLEX ASM configuration.

Good node ( Node 1)

CRS is up and running fine


SQL> select username from v$pwfile_users;

USERNAME
--------------------------------------------------------------------------------
SYS
CRSUSER__ASM_001
ASMSNMP

Bad node ( Node 2)

While starting CRS on node 2, CRSD and EVMD failed to start.

grid@node2 grid_12.2.0.1 +ASM2 $ crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4535: Cannot communicate with Cluster Ready Services <<< CRSD fails to start >>>
CRS-4529: Cluster Synchronization Services is online
CRS-4534: Cannot communicate with Event Manager  <<< EVMD fails to start >>>

 

 

Changes

Newly Implemented VNC (Valid Node checking) with all the required hosts in sqlnet.ora.

hostname restrictions in the sqlnet.ora

TCP.VALIDNODE_CHECKING = YES
TCP.INVITED_NODES=(all the required hosts for Valid node checking)

Cause

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