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Posted to users@nifi.apache.org by "Peter Wicks (pwicks)" <pw...@micron.com> on 2016/12/20 21:05:37 UTC

Failing to Start NiFi 1.1.0, OverlappingFileLockException

I've successfully upgraded my DEV and TEST environments from NiFi 1.0.0 to NiFi 1.1.0. So I felt comfortable upgrading PROD until...
I completed all the work and went to start the server, but am receiving the below stack trace.  I dug through the code a bit and found that it's locking a file named wali.lock, so I tried deleting that file and starting NiFi up again but got the same stack dump.  The lock file did get recreated on the next run.

Our version of NiFi 1.1.0 is a couple of commits newer than official due to a merged branch (rather than a cherry pick). I don't have the exact commit we are running, but we haven't had this issue in our other environments using the same code.

---BEGIN STACK TRACE---
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowService': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowController': FactoryBean threw exception on object creation; nested exception is java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[na:na]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060) ~[na:na]
        at org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextDestroyed(ApplicationStartupContextListener.java:103) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.callContextDestroyed(ContextHandler.java:845) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.callContextDestroyed(ServletContextHandler.java:546) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.stopContext(ContextHandler.java:826) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.stopContext(ServletContextHandler.java:356) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.stopWebapp(WebAppContext.java:1410) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.stopContext(WebAppContext.java:1374) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.doStop(ContextHandler.java:874) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.doStop(ServletContextHandler.java:272) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.doStop(WebAppContext.java:544) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.server.Server.doStop(Server.java:482) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.apache.nifi.web.server.JettyServer.stop(JettyServer.java:854) ~[na:na]
        at org.apache.nifi.NiFi.shutdownHook(NiFi.java:187) [nifi-runtime-1.1.0.jar:1.1.0]
        at org.apache.nifi.NiFi$2.run(NiFi.java:88) [nifi-runtime-1.1.0.jar:1.1.0]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowController': FactoryBean threw exception on object creation; nested exception is java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[na:na]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060) ~[na:na]
        at org.apache.nifi.spring.StandardFlowServiceFactoryBean.getObject(StandardFlowServiceFactoryBean.java:48) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[na:na]
        ... 33 common frames omitted
Caused by: java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.apache.nifi.controller.FlowController.createFlowFileRepository(FlowController.java:642) ~[na:na]
        at org.apache.nifi.controller.FlowController.<init>(FlowController.java:447) ~[na:na]
        at org.apache.nifi.controller.FlowController.createStandaloneInstance(FlowController.java:375) ~[na:na]
        at org.apache.nifi.spring.FlowControllerFactoryBean.getObject(FlowControllerFactoryBean.java:74) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[na:na]
        ... 40 common frames omitted
Caused by: java.nio.channels.OverlappingFileLockException: null
        at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255) ~[na:1.8.0_101]
        at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152) ~[na:1.8.0_101]
        at sun.nio.ch.FileChannelImpl.lock(FileChannelImpl.java:1063) ~[na:1.8.0_101]
        at java.nio.channels.FileChannel.lock(FileChannel.java:1053) ~[na:1.8.0_101]
        at org.wali.MinimalLockingWriteAheadLog.<init>(MinimalLockingWriteAheadLog.java:187) ~[na:na]
        at org.wali.MinimalLockingWriteAheadLog.<init>(MinimalLockingWriteAheadLog.java:112) ~[na:na]
        at org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.initialize(WriteAheadFlowFileRepository.java:148) ~[na:na]
        at org.apache.nifi.controller.FlowController.createFlowFileRepository(FlowController.java:638) ~[na:na]
---END STACK TRACE---


RE: Failing to Start NiFi 1.1.0, OverlappingFileLockException

Posted by "Peter Wicks (pwicks)" <pw...@micron.com>.
Mark,

We just got this working this morning. During a configuration file review late yesterday (we used a new config file and copied over settings) it was discovered that I hadn’t put in a Port number for Jetty to run on… nifi.web.https.port was left blank instead of providing a port number, and the regular http port number was also blank.  For some reason this lead to this error, and I have no idea why.  I updated this property to 8443 and now it’s running fine.

This seemed really weird to me, so I took my local build from source but I only got helpful error messages like, “Remote input HTTPS is enabled but nifi.web.https.port is not specified”. So I’m not really sure what combination of factors lead to this vague error.

From: Mark Payne [mailto:markap14@hotmail.com]
Sent: Wednesday, December 21, 2016 6:34 AM
To: users@nifi.apache.org
Subject: Re: Failing to Start NiFi 1.1.0, OverlappingFileLockException

Hey Peter,

The FlowFile repository obtains a lock to ensure that no other process is using that directory.
Getting an OverlappingFileLockException means that there is actually another process that
has a lock. Can you verify that no other instance of NiFi is running on the node? If possible
would recommend running "ps -ef | grep nifi" as root (assuming that you're running on Linux).
This would ensure that no other user has started the nifi process.

Thanks
-Mark


On Dec 20, 2016, at 4:05 PM, Peter Wicks (pwicks) <pw...@micron.com>> wrote:

I’ve successfully upgraded my DEV and TEST environments from NiFi 1.0.0 to NiFi 1.1.0. So I felt comfortable upgrading PROD until…
I completed all the work and went to start the server, but am receiving the below stack trace.  I dug through the code a bit and found that it’s locking a file named wali.lock, so I tried deleting that file and starting NiFi up again but got the same stack dump.  The lock file did get recreated on the next run.

Our version of NiFi 1.1.0 is a couple of commits newer than official due to a merged branch (rather than a cherry pick). I don’t have the exact commit we are running, but we haven’t had this issue in our other environments using the same code.

---BEGIN STACK TRACE---
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowService': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowController': FactoryBean threw exception on object creation; nested exception is java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[na:na]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060) ~[na:na]
        at org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextDestroyed(ApplicationStartupContextListener.java:103) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.callContextDestroyed(ContextHandler.java:845) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.callContextDestroyed(ServletContextHandler.java:546) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.stopContext(ContextHandler.java:826) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.stopContext(ServletContextHandler.java:356) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.stopWebapp(WebAppContext.java:1410) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.stopContext(WebAppContext.java:1374) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.doStop(ContextHandler.java:874) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.doStop(ServletContextHandler.java:272) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.doStop(WebAppContext.java:544) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.server.Server.doStop(Server.java:482) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.apache.nifi.web.server.JettyServer.stop(JettyServer.java:854) ~[na:na]
        at org.apache.nifi.NiFi.shutdownHook(NiFi.java:187) [nifi-runtime-1.1.0.jar:1.1.0]
        at org.apache.nifi.NiFi$2.run(NiFi.java:88) [nifi-runtime-1.1.0.jar:1.1.0]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowController': FactoryBean threw exception on object creation; nested exception is java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[na:na]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060) ~[na:na]
        at org.apache.nifi.spring.StandardFlowServiceFactoryBean.getObject(StandardFlowServiceFactoryBean.java:48) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[na:na]
        ... 33 common frames omitted
Caused by: java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.apache.nifi.controller.FlowController.createFlowFileRepository(FlowController.java:642) ~[na:na]
        at org.apache.nifi.controller.FlowController.<init>(FlowController.java:447) ~[na:na]
        at org.apache.nifi.controller.FlowController.createStandaloneInstance(FlowController.java:375) ~[na:na]
        at org.apache.nifi.spring.FlowControllerFactoryBean.getObject(FlowControllerFactoryBean.java:74) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[na:na]
        ... 40 common frames omitted
Caused by: java.nio.channels.OverlappingFileLockException: null
        at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255) ~[na:1.8.0_101]
        at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152) ~[na:1.8.0_101]
        at sun.nio.ch.FileChannelImpl.lock(FileChannelImpl.java:1063) ~[na:1.8.0_101]
        at java.nio.channels.FileChannel.lock(FileChannel.java:1053) ~[na:1.8.0_101]
        at org.wali.MinimalLockingWriteAheadLog.<init>(MinimalLockingWriteAheadLog.java:187) ~[na:na]
        at org.wali.MinimalLockingWriteAheadLog.<init>(MinimalLockingWriteAheadLog.java:112) ~[na:na]
        at org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.initialize(WriteAheadFlowFileRepository.java:148) ~[na:na]
        at org.apache.nifi.controller.FlowController.createFlowFileRepository(FlowController.java:638) ~[na:na]
---END STACK TRACE---


Re: Failing to Start NiFi 1.1.0, OverlappingFileLockException

Posted by Mark Payne <ma...@hotmail.com>.
Hey Peter,

The FlowFile repository obtains a lock to ensure that no other process is using that directory.
Getting an OverlappingFileLockException means that there is actually another process that
has a lock. Can you verify that no other instance of NiFi is running on the node? If possible
would recommend running "ps -ef | grep nifi" as root (assuming that you're running on Linux).
This would ensure that no other user has started the nifi process.

Thanks
-Mark


On Dec 20, 2016, at 4:05 PM, Peter Wicks (pwicks) <pw...@micron.com>> wrote:

I’ve successfully upgraded my DEV and TEST environments from NiFi 1.0.0 to NiFi 1.1.0. So I felt comfortable upgrading PROD until…
I completed all the work and went to start the server, but am receiving the below stack trace.  I dug through the code a bit and found that it’s locking a file named wali.lock, so I tried deleting that file and starting NiFi up again but got the same stack dump.  The lock file did get recreated on the next run.

Our version of NiFi 1.1.0 is a couple of commits newer than official due to a merged branch (rather than a cherry pick). I don’t have the exact commit we are running, but we haven’t had this issue in our other environments using the same code.

---BEGIN STACK TRACE---
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowService': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowController': FactoryBean threw exception on object creation; nested exception is java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[na:na]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060) ~[na:na]
        at org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextDestroyed(ApplicationStartupContextListener.java:103) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.callContextDestroyed(ContextHandler.java:845) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.callContextDestroyed(ServletContextHandler.java:546) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.stopContext(ContextHandler.java:826) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.stopContext(ServletContextHandler.java:356) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.stopWebapp(WebAppContext.java:1410) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.stopContext(WebAppContext.java:1374) ~[na:na]
        at org.eclipse.jetty.server.handler.ContextHandler.doStop(ContextHandler.java:874) ~[na:na]
        at org.eclipse.jetty.servlet.ServletContextHandler.doStop(ServletContextHandler.java:272) ~[na:na]
        at org.eclipse.jetty.webapp.WebAppContext.doStop(WebAppContext.java:544) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:143) ~[na:na]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:161) ~[na:na]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:73) ~[na:na]
        at org.eclipse.jetty.server.Server.doStop(Server.java:482) ~[na:na]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) ~[na:na]
        at org.apache.nifi.web.server.JettyServer.stop(JettyServer.java:854) ~[na:na]
        at org.apache.nifi.NiFi.shutdownHook(NiFi.java:187) [nifi-runtime-1.1.0.jar:1.1.0]
        at org.apache.nifi.NiFi$2.run(NiFi.java:88) [nifi-runtime-1.1.0.jar:1.1.0]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flowController': FactoryBean threw exception on object creation; nested exception is java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[na:na]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[na:na]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060) ~[na:na]
        at org.apache.nifi.spring.StandardFlowServiceFactoryBean.getObject(StandardFlowServiceFactoryBean.java:48) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[na:na]
        ... 33 common frames omitted
Caused by: java.lang.RuntimeException: java.nio.channels.OverlappingFileLockException
        at org.apache.nifi.controller.FlowController.createFlowFileRepository(FlowController.java:642) ~[na:na]
        at org.apache.nifi.controller.FlowController.<init>(FlowController.java:447) ~[na:na]
        at org.apache.nifi.controller.FlowController.createStandaloneInstance(FlowController.java:375) ~[na:na]
        at org.apache.nifi.spring.FlowControllerFactoryBean.getObject(FlowControllerFactoryBean.java:74) ~[na:na]
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[na:na]
        ... 40 common frames omitted
Caused by: java.nio.channels.OverlappingFileLockException: null
        at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255) ~[na:1.8.0_101]
        at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152) ~[na:1.8.0_101]
        at sun.nio.ch.FileChannelImpl.lock(FileChannelImpl.java:1063) ~[na:1.8.0_101]
        at java.nio.channels.FileChannel.lock(FileChannel.java:1053) ~[na:1.8.0_101]
        at org.wali.MinimalLockingWriteAheadLog.<init>(MinimalLockingWriteAheadLog.java:187) ~[na:na]
        at org.wali.MinimalLockingWriteAheadLog.<init>(MinimalLockingWriteAheadLog.java:112) ~[na:na]
        at org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.initialize(WriteAheadFlowFileRepository.java:148) ~[na:na]
        at org.apache.nifi.controller.FlowController.createFlowFileRepository(FlowController.java:638) ~[na:na]
---END STACK TRACE---