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Process Engine Trouble

Question asked by CMCN1982 on Nov 27, 2015
Latest reply on Dec 1, 2015 by CMCN1982


Yesterday one of our process engines experienced some difficulty and stopped responding. A service stop start bg has it back up and running again now but we would like to understand what caused the prpblem if possible. So on the bg-ca.log file I can see these errors:

 

 

ERROR 2015-11-26 08:18:38,775 [ProcessEngineThreadMonitor (tenant=clarity)] niku.union (none:none:none:none) ProcessEngineThreadMonitor: Thread, Process Loader (tenant=clarity) is not Alive. The Service running the ProcessEngine will need to be restarted.

 

ERROR 2015-11-26 08:18:39,519 [Process Monitor (tenant=clarity)] bpm.engine (clarity:process_admin:200185659__F54454D6-9A7D-4E69-B1CB-B23708C99F3A:none) ----> Engine: bg-SERVER heart beat is old. Heartbeat: Thu Nov 26 06:15:13 EST 2015 Limit: Thu Nov 26 06:18:39 EST 2015. Engine will be shutdown.. If this is not normal, please fix any problems and restart the process engine. Trying to shudown process enigne.

java.lang.Exception

at com.niku.bpm.engine.ProcessMonitor.execute(ProcessMonitor.java:188)

at com.niku.bpm.engine.ProcessMonitor.run(ProcessMonitor.java:118)

 

 

ERROR 2015-11-26 08:18:39,522 [Process Monitor (tenant=clarity)] engine.state (clarity:process_admin:200185659__F54454D6-9A7D-4E69-B1CB-B23708C99F3A:none) <?xml version="1.0" encoding="UTF-8"?>
<processEngine id="5874001" instanceName="bg-PAERSCBBLA1063">
  <controller heartBeat="2015-11-26T08:18:39"/>
  <loader heartBeat="2015-11-26T06:15:13" queueLength="410"/>
  <conditionWaitList queueLength="0"/>
  <retryWaitList queueLength="0"/>
  <actionWaitList queueLength="0"/>
  <PreConditionPipelineManager load="0.0" noOfPipelines="2" queueLength="0" recentLoad="0.0">
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Pre Condition Pipeline 0" recentLoad="0.0" runTime="0" running="false" startTime="2015-11-26T06:13:38"/>
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Pre Condition Pipeline 1" recentLoad="0.0" runTime="0" running="false" startTime="2015-11-26T06:13:38"/>
  </PreConditionPipelineManager>
  <PostConditionTransitionPipelineManager load="0.0" noOfPipelines="3" queueLength="0" recentLoad="0.0">
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Post Condition Transition Pipeline 0" recentLoad="0.0" runTime="0"
      running="false" startTime="2015-11-26T06:13:38"/>
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Post Condition Transition Pipeline 1" recentLoad="0.0" runTime="0"
      running="false" startTime="2015-11-26T06:13:38"/>
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Post Condition Transition Pipeline 2" recentLoad="0.0" runTime="0"
      running="false" startTime="2015-11-26T06:13:38"/>
  </PostConditionTransitionPipelineManager>
  <ActionExecutionPipelineManager load="0.0" noOfPipelines="3" queueLength="0" recentLoad="0.0">
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Action Execution Pipeline 0" recentLoad="0.0" runTime="0" running="false" startTime="2015-11-26T06:13:38"/>
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Action Execution Pipeline 1" recentLoad="0.0" runTime="0" running="false" startTime="2015-11-26T06:13:38"/>
    <pipeline heartBeat="2015-11-26T06:13:38" index="1" load="0.0" name="Action Execution Pipeline 2" recentLoad="0.0" runTime="0" running="false" startTime="2015-11-26T06:13:38"/>
  </ActionExecutionPipelineManager>
</processEngine>

SYS   2015-11-26 08:18:39,525 [Process Monitor (tenant=clarity)] bpm.engine (clarity:process_admin:200185659__F54454D6-9A7D-4E69-B1CB-B23708C99F3A:none) Process Controller for engine bg-SERVER stopping...

 

 

Is there any good place to start investigating the issue which may have caused the process engine to stop?

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