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From Ashutosh Vaish <ashutoshvaish6...@gmail.com>
Subject Regarding NiFi Registry
Date Tue, 18 Feb 2020 19:21:13 GMT
Hi Team,

I'm working with NiFi Registry, NiFi 1.9.2. I have connected the registry
to my github repository. I am able to push the changes into the repo but
I'm not able to change the version of the flow and see local changes. I
receive Internal 500 error whenever performing these operations.

I'm using Windows, kindly help me with this issue.

The server logs are below

2020-02-19 00:45:11,178 ERROR [NiFi Registry Web Server-15]
o.a.n.r.web.mapper.ThrowableMapper An unexpected error has occurred:
java.lang.NullPointerException. Returning Internal Server Error response.
java.lang.NullPointerException: null
at org.eclipse.jgit.lib.Repository.resolve(Repository.java:528)
at org.eclipse.jgit.lib.Repository.resolve(Repository.java:489)
at
org.apache.nifi.registry.provider.flow.git.GitFlowMetaData.getContent(GitFlowMetaData.java:447)
at
org.apache.nifi.registry.provider.flow.git.GitFlowPersistenceProvider.getFlowContent(GitFlowPersistenceProvider.java:192)
at
org.apache.nifi.registry.service.RegistryService.getVersionedFlowSnapshot(RegistryService.java:784)
at
org.apache.nifi.registry.service.RegistryService.getFlowSnapshot(RegistryService.java:769)
at
org.apache.nifi.registry.service.RegistryService$$FastClassBySpringCGLIB$$274de08.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:295)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at
org.apache.nifi.registry.service.RegistryService$$EnhancerBySpringCGLIB$$94d00873.getFlowSnapshot(<generated>)
at
org.apache.nifi.registry.web.api.BucketFlowResource.getFlowVersion(BucketFlowResource.java:468)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:76)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:148)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:191)
at
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:200)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:103)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:493)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:415)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:104)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
at
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
at
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:703)
at
org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:416)
at
org.glassfish.jersey.servlet.ServletContainer.serviceImpl(ServletContainer.java:409)
at
org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:584)
at
org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:525)
at
org.glassfish.jersey.servlet.ServletContainer.doFilter(ServletContainer.java:462)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
at
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at
org.apache.nifi.registry.web.security.authorization.ResourceAuthorizationFilter.forwardRequestWithoutAuthorizationCheck(ResourceAuthorizationFilter.java:151)
at
org.apache.nifi.registry.web.security.authorization.ResourceAuthorizationFilter.doFilter(ResourceAuthorizationFilter.java:113)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.apache.nifi.registry.web.security.authentication.IdentityFilter.doFilter(IdentityFilter.java:70)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.apache.nifi.registry.web.security.authentication.IdentityFilter.doFilter(IdentityFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
at
org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:128)
at
org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66)
at
org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at
org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1711)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1347)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1678)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1249)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:152)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:505)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at
org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:427)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:321)
at
org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:159)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:781)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:917)
at java.lang.Thread.run(Unknown Source)

Thank you,
Ashutosh Vaish

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