2213745 - SAP OS monitor has probably stopped. The OS information may be incomplete or missing.

The System Overview plugin in the NWA shows SAPOSCOL errors:
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SAP OS monitor has probably stopped. The OS information may be incomplete or missing.

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Paramater ccms/enable_agent = 1 is already set in the instance profile.

sapstartsrv_ccms.log contains this error:

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ERROR: Starting integrated CCMS agent sapccmsr encountered troubles:
Found a lock file of another "standalone sapccmsr" agent, pid <PID>, in my working directory.
According to the pid <PID>, you can check which process blocks the start.

There is standalone CCMS agent with the same profile already active!
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SAP NetWeaver Java Release Independent

SAPOSCOL, NWA, system overview, SAP OS monitor has probably stopped. The OS information may be incomplete or missing. , KBA , BC-JAS-ADM-MON , Monitoring , BC-CCM-MON , CCMS Monitoring & Alerting , Problem