2536083 - System Monitoring - TREX performance data missing/gray

In the System Monitoring application for a TREX system, the performance data of the TREX instances are missing:

In the SMDAgentApplication.log you find the following error for action SapStartSrv:

Sep 18, 2017 2:52:02 AM [Thread[SapStartSrv_<hostname>_<system ID>_<Instance number>,5,WILYHOST_SCHEDULER:ExecTG]] Error      com.sap.smd.wily.hostagent.action.AbstractAction - run(): Action throws exception, will be terminated: SapStartSrv_<hostname>_<system ID>_<Instance number>
[EXCEPTION]
java.lang.ArrayIndexOutOfBoundsException: while trying to load from index -1 of an object array with length 200, loaded from field java.util.ArrayList.elementData of an object loaded from local variable 'this'
    at java.util.ArrayList.get(ArrayList.java:324)
    at com.sap.smd.wily.hostagent.sapcontrol.SapControlAction.constructAlertTree(SapControlAction.java:315)
    at com.sap.smd.wily.hostagent.sapcontrol.SapControlAction.constructAlertTree(SapControlAction.java:317)
    at com.sap.smd.wily.hostagent.sapcontrol.SapControlAction.getAlertTree(SapControlAction.java:385)
    at com.sap.smd.wily.hostagent.sapcontrol.SapControlAction.doRun(SapControlAction.java:1079)
    at com.sap.smd.wily.hostagent.action.AbstractAction.run(AbstractAction.java:82)
    at com.sap.smd.wily.hostagent.Scheduler$RunnerAdapter.run(Scheduler.java:165)
    at com.sap.smd.server.exec.TaskRunner.run(TaskRunner.java:47)
    at com.sap.smd.server.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:781)
    at java.lang.Thread.run(Thread.java:763)

This is not exactly the action that collects the data for the monitoring application, but an action created via Introscope Host Adapter activity, which enables the data collection. Having this result for this action means that the performance data was not found.

Disclaimer: "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

TREX Monitoring on Solution Manager 7.1 and 7.2

KBA , SV-SMG-DIA-SRV-AGT , Agent Framework , SV-SMG-MON-ALR , Monitoring/Alerting/Reporting Infrastructure , Problem