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  1. Apache NiFi
  2. NIFI-6153

[Wait/Notify] Wait processor doesn't release a file

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      Description

      TC:

      1) Flow

      2) Wait Processor Properties:

      Release Signal Identifier: signal_${filename}

      Target Signal Count: 0

      Distributed Cache Service: RedisDistributedMapCacheClientService

      Wait Mode: Keep in the upstream connection

      3) Notify Processor Properties:

      Release Signal Identifier: signal_${filename}

      Distributed Cache Service: RedisDistributedMapCacheClientService

      ER:
      Flow file would be released if the expected count is 0.

      AR:

      • Without Notify processor a flowFile doesn't release.
      • With Notify processor occurs the next exception:
      o.a.n.controller.tasks.ConnectableTask Administratively Yielding Wait[id=bea7821d-0169-1000-5107-59ea62350cd2] due to uncaught Exception: java.lang.ArithmeticException: / by zero
      java.lang.ArithmeticException: / by zero
      at org.apache.nifi.processors.standard.WaitNotifyProtocol$Signal.releaseCandidates(WaitNotifyProtocol.java:145)
      at org.apache.nifi.processors.standard.Wait.onTrigger(Wait.java:449)
      at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
      at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1162)
      at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:205)
      at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
      at java.util.concurrent.Executors$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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          Artem Anokhin

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            • Assignee:
              Unassigned
              Reporter:
              JFeoks Artem Anokhin
            • Votes:
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              Dates

              • Created:
                Updated: