[NIFI-8401] o.apache.nifi.controller.FlowController Failed to capture component stats for Stats History on Windows Systems

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.13.2
• Component/s: Configuration
• Environment: Windows 10 ; Windows Server 2019
• Assignee: Unassigned
• Reporter: Eric Detwiler
• Created: 07/Apr/21 19:24
• Updated: 08/Apr/21 13:02
• Resolved: 08/Apr/21 08:32

Description

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)

Issue Links

• is fixed by: NIFI-8400 SystemDiagnostics throws NPE on Windows