Hi,

NiFi version: 1.1.2, Linux

Last night nifi servers got restarted and unable to bring nifi service back up. 
I saw this thread 
https://community.hortonworks.com/questions/75280/why-does-my-minifi-flow-fail-to-run-when-turning-o.html,
 but don’t see any workaround for this.

Below are log messages from nifi-app.log:

2017-04-14 05:52:09,988 WARN [main] org.apache.nifi.web.server.JettyServer 
Failed to start web server... shutting down.

org.apache.nifi.web.NiFiCoreException: Unable to start Flow Controller.

        at 
org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:85)
 ~[na:na]

        at 
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:837)
 ~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:533)
 ~[jetty-servlet-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:810)
 ~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:345)
 ~[jetty-servlet-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1404) 
~[jetty-webapp-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1366) 
~[jetty-webapp-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:772)
 ~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:262)
 ~[jetty-servlet-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:520) 
~[jetty-webapp-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
 ~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:106)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
 ~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:231) 
~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at org.eclipse.jetty.server.Server.start(Server.java:411) 
~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:106)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
 ~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at org.eclipse.jetty.server.Server.doStart(Server.java:378) 
~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]

        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
 ~[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]

        at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:675) 
~[nifi-jetty-1.1.2.jar:1.1.2]

        at org.apache.nifi.NiFi.<init>(NiFi.java:156) 
[nifi-runtime-1.1.2.jar:1.1.2]

        at org.apache.nifi.NiFi.main(NiFi.java:262) 
[nifi-runtime-1.1.2.jar:1.1.2]

Caused by: java.io.IOException: Expected to read a Sentinel Byte of '1' but got 
a value of '0' instead

        at 
org.apache.nifi.repository.schema.SchemaRecordReader.readRecord(SchemaRecordReader.java:65)
 ~[nifi-schema-utils-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.repository.SchemaRepositoryRecordSerde.deserializeRecord(SchemaRepositoryRecordSerde.java:111)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.repository.SchemaRepositoryRecordSerde.deserializeEdit(SchemaRepositoryRecordSerde.java:105)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.repository.SchemaRepositoryRecordSerde.deserializeEdit(SchemaRepositoryRecordSerde.java:46)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]

        at 
org.wali.MinimalLockingWriteAheadLog$Partition.recoverNextTransaction(MinimalLockingWriteAheadLog.java:1072)
 ~[nifi-write-ahead-log-1.1.2.jar:1.1.2]

        at 
org.wali.MinimalLockingWriteAheadLog.recoverFromEdits(MinimalLockingWriteAheadLog.java:459)
 ~[nifi-write-ahead-log-1.1.2.jar:1.1.2]

        at 
org.wali.MinimalLockingWriteAheadLog.recoverRecords(MinimalLockingWriteAheadLog.java:301)
 ~[nifi-write-ahead-log-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.repository.WriteAheadFlowFileRepository.loadFlowFiles(WriteAheadFlowFileRepository.java:346)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.FlowController.initializeFlow(FlowController.java:700)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:701)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]

        at 
org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:508)
 ~[nifi-framework-core-1.1.2.jar:1.1.2]



Appreciate any help on this issue.



Thanks,

Ravi Papisetti

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