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https://issues.apache.org/jira/browse/NIFI-8667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matt Burgess updated NIFI-8667:
-------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
> Deadlock when enabling Controller Service and all Referencing Components
> ------------------------------------------------------------------------
>
> Key: NIFI-8667
> URL: https://issues.apache.org/jira/browse/NIFI-8667
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.14.0
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Blocker
> Fix For: 1.14.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> I have a flow configured with an AvroSchemaRegistry. I have a JSON Reader and
> a JSON Writer both referencing it. I then have a few processors referencing
> both the reader and the writer.
> When I click Enable on the AvroSchemaRegistry and choose to enable all
> referencing components, I encountered a deadlock. The threads involved were:
> {quote}
> "Timer-Driven Process Thread-9" Id=80 WAITING on
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync@32a7e726 **
> DEADLOCKED THREAD **
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
> at
> java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
> at
> org.apache.nifi.controller.service.ServiceStateTransition.getState(ServiceStateTransition.java:125)
> at
> org.apache.nifi.controller.service.StandardControllerServiceNode.getState(StandardControllerServiceNode.java:363)
> at
> org.apache.nifi.controller.AbstractComponentNode.validateReferencedControllerServices(AbstractComponentNode.java:719)
> at
> org.apache.nifi.controller.AbstractComponentNode.computeValidationErrors(AbstractComponentNode.java:611)
> at
> org.apache.nifi.controller.StandardProcessorNode.computeValidationErrors(StandardProcessorNode.java:1054)
> at
> org.apache.nifi.controller.AbstractComponentNode.performValidation(AbstractComponentNode.java:574)
> at
> org.apache.nifi.controller.AbstractComponentNode.performValidation(AbstractComponentNode.java:588)
> at
> org.apache.nifi.controller.service.ServiceStateTransition.enable(ServiceStateTransition.java:83)
> at
> org.apache.nifi.controller.service.StandardControllerServiceNode$2.run(StandardControllerServiceNode.java:460)
> - waiting on java.util.concurrent.atomic.AtomicBoolean@126cb602
> 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.run(FutureTask.java:266)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Number of Locked Synchronizers: 2
> - java.util.concurrent.ThreadPoolExecutor$Worker@6492d91f
> -
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync@b052adc
> "Timer-Driven Process Thread-8" Id=78 WAITING on
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync@b052adc **
> DEADLOCKED THREAD **
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
> at
> java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
> at
> org.apache.nifi.controller.service.ServiceStateTransition.getState(ServiceStateTransition.java:125)
> at
> org.apache.nifi.controller.service.StandardControllerServiceNode.getState(StandardControllerServiceNode.java:363)
> at
> org.apache.nifi.controller.AbstractComponentNode.validateReferencedControllerServices(AbstractComponentNode.java:719)
> at
> org.apache.nifi.controller.AbstractComponentNode.computeValidationErrors(AbstractComponentNode.java:611)
> at
> org.apache.nifi.controller.StandardProcessorNode.computeValidationErrors(StandardProcessorNode.java:1054)
> at
> org.apache.nifi.controller.AbstractComponentNode.performValidation(AbstractComponentNode.java:574)
> at
> org.apache.nifi.controller.AbstractComponentNode.performValidation(AbstractComponentNode.java:588)
> at
> org.apache.nifi.controller.service.ServiceStateTransition.enable(ServiceStateTransition.java:83)
> at
> org.apache.nifi.controller.service.StandardControllerServiceNode$2.run(StandardControllerServiceNode.java:460)
> - waiting on java.util.concurrent.atomic.AtomicBoolean@2cdc4681
> 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.run(FutureTask.java:266)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Number of Locked Synchronizers: 2
> -
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync@32a7e726
> - java.util.concurrent.ThreadPoolExecutor$Worker@7814cc76
> {quote}
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