Eric Detwiler created NIFI-8401:
-----------------------------------

             Summary: o.apache.nifi.controller.FlowController Failed to capture 
component stats for Stats History on Windows Systems
                 Key: NIFI-8401
                 URL: https://issues.apache.org/jira/browse/NIFI-8401
             Project: Apache NiFi
          Issue Type: Bug
          Components: Configuration
    Affects Versions: 1.13.2
         Environment: Windows 10
Windows Server 2019
            Reporter: Eric Detwiler


1.13.2 on Windows systems does not capture stats for Stats History by default.  
Error log below:

Also located issue mentioned in post from March 2021.

https://community.cloudera.com/t5/Support-Questions/ERROR-FlowController-Failed-to-capture-component-stats-for/td-p/312486

Status History as a result does not function.

 

2021-04-02 07:56:00,013 INFO [pool-20-thread-1] 
o.a.n.c.r.WriteAheadFlowFileRepository Initiating checkpoint of FlowFile 
Repository
2021-04-02 07:56:00,014 INFO [pool-20-thread-1] 
o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile 
Repository with 0 records in 0 milliseconds
2021-04-02 07:56:17,311 ERROR [Timer-Driven Process Thread-7] 
o.apache.nifi.controller.FlowController Failed to capture component stats for 
Stats History
java.lang.NullPointerException: null
 at 
org.apache.nifi.diagnostics.SystemDiagnostics.getOpenFileHandles(SystemDiagnostics.java:224)
 at 
org.apache.nifi.controller.FlowController.getNodeStatusSnapshot(FlowController.java:3011)
 at 
org.apache.nifi.controller.FlowController.access$400(FlowController.java:230)
 at org.apache.nifi.controller.FlowController$2.run(FlowController.java:697)
 at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
 at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
 at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
 at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
 at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)



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