Hello,

I am running 1.2.0 Snapshot on a Linux instance with some custom processors. I 
was trying to update a certificate this morning and restart the instance and 
I'm stuck with the "OverlappingFileLockException". The instance would not start 
and soon after I start it ,it will shutdown with the following logs in 
bootstrap.log

2017-05-25 15:37:12,935 ERROR [NiFi logging handler] org.apache.nifi.StdErr 
Failed to start web server: Unable to start Flow Controller.
2017-05-25 15:37:12,936 ERROR [NiFi logging handler] org.apache.nifi.StdErr 
Shutting down...
2017-05-25 15:37:13,884 INFO [main] org.apache.nifi.bootstrap.RunNiFi NiFi 
never started. Will not restart NiFi

However, I was going through the app-log to make sure everything is okay and I 
found the below trace


WARN [Thread-1] org.apache.nifi.web.server.JettyServer Failed to stop web server
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:188) 
[nifi-runtime-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
        at org.apache.nifi.NiFi$2.run(NiFi.java:89) 
[nifi-runtime-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
        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:641)
 ~[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:637)
 ~[na:na]
        ... 44 common frames omitted
2017-05-25 15:41:28,117 INFO [Thread-1] org.apache.nifi.NiFi Jetty web server 
shutdown completed (nicely or otherwise).


Can anyone suggest anything at this point, I double checked all the server 
configurations like jetty properties and web ports, everything seems to be 
normal. I still cannot think of why this would be happening all of a sudden. 
Any help on this would be appreciated.


Thanks
Karthik





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