12cR1 – Stop CRS: OC4J Fails to Stop

Hi all!
So, I started to to see this error to stop a 12.1.0.2 CRS :

CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'grepora-srv-01'
CRS-2673: Attempting to stop 'ora.crsd' on 'grepora-srv-01'
CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'grepora-srv-01'
CRS-2679: Attempting to clean 'ora.oc4j' on 'grepora-srv-01'
CRS-2680: Clean of 'ora.oc4j' on 'grepora-srv-01' failed
CRS-2799: Failed to shut down resource 'ora.oc4j' on 'grepora-srv-01'
CRS-2794: Shutdown of Cluster Ready Services-managed resources on 'grepora-srv-01' has failed
CRS-2675: Stop of 'ora.crsd' on 'grepora-srv-01' failed
CRS-2799: Failed to shut down resource 'ora.crsd' on 'grepora-srv-01'
CRS-2795: Shutdown of Oracle High Availability Services-managed resources on 'grepora-srv-01' has failed
CRS-4687: Shutdown command has completed with errors.

When running a crsctl stat res -t it will show something like this

ora.oc4j 1 ONLINE UNKNOWN grpora-srv-01 CLEANING

Solution? Follow The rootupgrade.sh fails because the oc4j resource fails to stop (Doc ID 1921629.1):

1) Stop the OC4J resource, as grid user:

 srvctl stop oc4j -f

Note: Even if the oc4j does not stop, continue with step 2
2) Disable the OC4J resource, as grid user:

 srvctl disable oc4j

3) Confirm the OC4J resource is NOT running, as grid user:

 srvctl status oc4j

If the OC4J resource is still running, go to the node where oc4j is running and recycle GI by issuing the following as root:

 crsctl stop crs -f
 crsctl start crs

Why?
oc4j is used only for Quality of Service Management (QoS feature), as per:
https://docs.oracle.com/database/121/APQOS/install_config.htm#APQOS151
http://docs.oracle.com/cd/E11882_01/server.112/e24611.pdf

Searched on MOS and only found notes saying we cannot remove default services (it is not supported). But as a DBA, in the middle of the night with environment down, this may be a solution for you, specially if you are not using QoS.

Hope it helps. Cheers!

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