Question – After I moved the stale file and recovered the cluster, how does it perform the pending requests that were in pipeline ? I am trying to understand if a instance crash in uneventful situation, how do I recover the data or the flow state.
Thanks, -Chakri From: Chakrader Dewaragatla <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday, November 5, 2015 at 11:53 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: nifi stale flow file Mark Thanks, I moved to another directory to keep it as a backup. I moved it back to flow.tar and cluster is back online. Make sense, I will make sure workflows are stopped prior restart. Thanks, -Chakri From: Mark Payne <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday, November 5, 2015 at 11:45 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: nifi stale flow file Chakri, When the Cluster Manager sends a request to nodes and that request will change the flow, it marks its flow as "stale" until it hears back from the nodes whether or not the request was successful. So it appears that you restarted while a request was being replicated to the nodes. Typically, the answer to this is to rename flow.tar.stale to flow.tar and restart the Cluster Manager. If you simply remove the flow.tar you are effectively deleting your entire flow, so be careful with that! When you say you "moved the stale file" what do you mean? You renamed it, removed it, moved to another directory to keep it as a backup? On Nov 5, 2015, at 1:53 PM, Chakrader Dewaragatla <[email protected]<mailto:[email protected]>> wrote: >> I moved the stale file and it started clean. I take it back, server came up clean. Slave nodes fails to connect server with following error. ==> nifi-bootstrap.log <== 2015-11-05 18:52:37,987 ERROR [NiFi logging handler] org.apache.nifi.StdErr Failed to start web server: Unable to load flow due to: java.io.IOException: org.apache.nifi.cluster.ConnectionException: Failed to connect node to cluster because local flow is different than cluster flow. 2015-11-05 18:52:37,988 ERROR [NiFi logging handler] org.apache.nifi.StdErr Shutting down... ==> nifi-app.log <== 2015-11-05 18:52:37,988 WARN [main] org.apache.nifi.web.server.JettyServer Failed to start web server... shutting down. java.lang.Exception: Unable to load flow due to: java.io.IOException: org.apache.nifi.cluster.ConnectionException: Failed to connect node to cluster because local flow is different than cluster flow. at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:779) ~[nifi-jetty-0.3.0.jar:0.3.0] at org.apache.nifi.NiFi.<init>(NiFi.java:137) [nifi-runtime-0.3.0.jar:0.3.0] at org.apache.nifi.NiFi.main(NiFi.java:227) [nifi-runtime-0.3.0.jar:0.3.0] Caused by: java.io.IOException: org.apache.nifi.cluster.ConnectionException: Failed to connect node to cluster because local flow is different than cluster flow. at org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:453) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:770) ~[nifi-jetty-0.3.0.jar:0.3.0] ... 2 common frames omitted Caused by: org.apache.nifi.cluster.ConnectionException: Failed to connect node to cluster because local flow is different than cluster flow. at org.apache.nifi.controller.StandardFlowService.loadFromConnectionResponse(StandardFlowService.java:732) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:433) ~[nifi-framework-core-0.3.0.jar:0.3.0] ... 3 common frames omitted Caused by: org.apache.nifi.controller.UninheritableFlowException: Proposed configuration is not inheritable by the flow controller because of flow differences: Found difference in Flows: Local Fingerprint: cf058baf-83bf-46f2-893c-df4efb928d9c1477b29c-0ca2-4bfa-a94e-984a6d9e516forg.apache.nifi.processors.a Cluster Fingerprint: 6b5d80a1-d85b-4e3c-8c29-fd525296e266 at org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:216) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1160) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:72) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:608) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.StandardFlowService.loadFromConnectionResponse(StandardFlowService.java:709) ~[nifi-framework-core-0.3.0.jar:0.3.0] ... 4 common frames omitted From: Chakrader Dewaragatla <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday, November 5, 2015 at 10:50 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: nifi stale flow file Hi – I have a clustered setup with NCM and two slaves. After few days of stable work, I tried to restart the server and it failed to come up with error: " Failed to instantiate [org.apache.nifi.cluster.flow.impl.DataFlowDaoImpl]: Constructor threw exception; nested exception is org.apache.nifi.cluster.flow.DaoException: Dataflow state file '/usr/local/nifi/./conf/flow.tar.stale' must be current.” I moved the stale file and it started clean. Any idea why I ran into stale file ? Also, why was it landed in conf dir ? Thanks, -Chakri Stack trace : 2015-11-05 18:27:33,616 ERROR [main] o.s.web.context.ContextLoader Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.filterChains': Cannot resolve reference to bean 'org.springframework.security.web.DefaultSecurityFilterChain#0' while setting bean property 'sourceList' with key [0]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.web.DefaultSecurityFilterChain#0': Cannot resolve reference to bean 'x509Filter' while setting constructor argument with key [3]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'x509Filter' defined in class path resource [nifi-web-security-context.xml]: Cannot resolve reference to bean 'authenticationManager' while setting bean property 'authenticationManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.authenticationManager': Cannot resolve reference to bean 'preauthAuthProvider' while setting constructor argument with key [0]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'preauthAuthProvider' defined in class path resource [nifi-web-security-context.xml]: Cannot create inner bean 'org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper#45987154' of type [org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper] while setting bean property 'preAuthenticatedUserDetailsService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper#45987154' defined in class path resource [nifi-web-security-context.xml]: Cannot resolve reference to bean 'userAuthorizationService' while setting bean property 'userDetailsService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userAuthorizationService' defined in class path resource [nifi-web-security-context.xml]: Cannot resolve reference to bean 'userService' while setting bean property 'userService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService' defined in class path resource [nifi-administration-context.xml]: Cannot resolve reference to bean 'userTransactionBuilder' while setting bean property 'transactionBuilder'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userTransactionBuilder' defined in class path resource [nifi-administration-context.xml]: Cannot resolve reference to bean 'authorityProvider' while setting bean property 'authorityProvider'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'clusterManager': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataFlowManagementService' defined in class path resource [nifi-cluster-manager-context.xml]: Cannot resolve reference to bean 'dataFlowDao' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataFlowDao' defined in class path resource [nifi-cluster-manager-context.xml]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.nifi.cluster.flow.impl.DataFlowDaoImpl]: Constructor threw exception; nested exception is org.apache.nifi.cluster.flow.DaoException: Dataflow state file '/usr/local/nifi/./conf/flow.tar.stale' must be current. at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:382) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:157) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1477) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1222) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:736) ~[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) ~[spring-context-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) ~[spring-context-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) [spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:800) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444) [jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:791) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294) [jetty-servlet-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349) [jetty-webapp-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342) [jetty-webapp-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505) [jetty-webapp-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.server.Server.start(Server.java:387) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.server.Server.doStart(Server.java:354) [jetty-server-9.2.11.v20150529.jar:9.2.11.v20150529] at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.11.v20150529.jar:9.2.11.v20150529] at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:658) [nifi-jetty-0.3.0.jar:0.3.0] at org.apache.nifi.NiFi.<init>(NiFi.java:137) [nifi-runtime-0.3.0.jar:0.3.0] at org.apache.nifi.NiFi.main(NiFi.java:227) [nifi-runtime-0.3.0.jar:0.3.0] ________________________________ The information contained in this transmission may contain privileged and confidential information. 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