Roman Kurmanowytsch created NIFI-8726:
-----------------------------------------
Summary: 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
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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