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https://issues.apache.org/jira/browse/NIFI-8726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Kurmanowytsch resolved NIFI-8726.
---------------------------------------
Resolution: Fixed
> Nifi hangs when running for some time
> -------------------------------------
>
> Key: NIFI-8726
> URL: https://issues.apache.org/jira/browse/NIFI-8726
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.13.2
> Environment: Windows
> Reporter: Roman Kurmanowytsch
> Priority: Blocker
> Attachments: nifi.log
>
>
> When running for some hours, Nifi seems to stop processing flowfiles. When
> trying to stop the process to have a look at the queues, it seems that some
> processors are stuck and cannot be terminated.
> In my particular case, I could not stop (among others) a simple ReplaceText
> processor, which just has to replace the complete content of a the flowfile
> by an empty String (so, no special wizardry here).
>
> The thread dump shows this:
> {noformat}
> Timer-Driven Process Thread-2" Id=56 WAITING on
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@32f60190
> at [email protected]/jdk.internal.misc.Unsafe.park(Native Method)
> at
> [email protected]/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
> at
> [email protected]/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2081)
> at
> org.apache.nifi.controller.repository.FileSystemRepository$ContainerState.waitForArchiveExpiration(FileSystemRepository.java:1660)
> at
> org.apache.nifi.controller.repository.FileSystemRepository.create(FileSystemRepository.java:609)
> at
> org.apache.nifi.controller.repository.claim.StandardContentClaimWriteCache.getContentClaim(StandardContentClaimWriteCache.java:63)
> at
> org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:2782)
> at
> org.apache.nifi.processors.standard.ReplaceText$AlwaysReplace.replace(ReplaceText.java:384)
> at
> org.apache.nifi.processors.standard.ReplaceText.onTrigger(ReplaceText.java:318)
> at
> app//org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> at
> org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1173)
> at
> org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:214)
> at
> org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
> at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
> [...]{noformat}
> So, it seems to wait on some lock. Interestingly, according to the thread
> dump, there are in total 8 threads waiting for ConditionObject@32f60190.
> Could you please check if I am doing something wrong here?
> Thank you!
>
>
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