https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241956#M203759 <P>I am new to Hortonwork. I have installed Hortonworks. Clicking on "Files View" in Ambari. On Service check complete it is showing me the below-mentioned error. How to solve this issue</P><P>Service 'hdfs' check failed:</P><P>java.lang.NullPointerException</P><P> at org.apache.ambari.server.view.ClusterImpl.getConfigByType(ClusterImpl.java:72)</P><P> at org.apache.ambari.view.utils.hdfs.ConfigurationBuilder.copyPropertiesBySite(ConfigurationBuilder.java:223)</P><P> at org.apache.ambari.view.utils.hdfs.ConfigurationBuilder.buildConfig(ConfigurationBuilder.java:358)</P><P> at org.apache.ambari.view.utils.hdfs.HdfsApi.&lt;init&gt;(HdfsApi.java:75)</P><P> at org.apache.ambari.view.utils.hdfs.HdfsUtil.getHdfsApi(HdfsUtil.java:157)</P><P> at org.apache.ambari.view.utils.hdfs.HdfsUtil.connectToHDFSApi(HdfsUtil.java:145)</P><P> at org.apache.ambari.view.commons.hdfs.HdfsService.hdfsSmokeTest(HdfsService.java:145)</P><P> at org.apache.ambari.view.filebrowser.HelpService.hdfsStatus(HelpService.java:95)</P><P> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</P><P> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)</P><P> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</P><P> at java.lang.reflect.Method.invoke(Method.java:498)</P><P> at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)</P><P> at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)</P><P> at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)</P><P> at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)</P><P> at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)</P><P> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)</P><P> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)</P><P> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)</P><P> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)</P><P> at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)</P><P> at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:291)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.apache.ambari.server.security.authentication.AmbariDelegatingAuthenticationFilter.doFilter(AmbariDelegatingAuthenticationFilter.java:135)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.apache.ambari.server.security.authorization.AmbariUserAuthorizationFilter.doFilter(AmbariUserAuthorizationFilter.java:95)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)</P><P> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)</P><P> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)</P><P> at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)</P><P> at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)</P><P> at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:73)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:53)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.view.AmbariViewsMDCLoggingFilter.doFilter(AmbariViewsMDCLoggingFilter.java:56)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.view.ViewThrottleFilter.doFilter(ViewThrottleFilter.java:161)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:130)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:130)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:51)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)</P><P> at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)</P><P> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)</P><P> at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)</P><P> at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)</P><P> at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)</P><P> at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)</P><P> at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)</P><P> at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:740)</P><P> at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:221)</P><P> at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:210)</P><P> at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:151)</P><P> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)</P><P> at org.eclipse.jetty.server.Server.handle(Server.java:503)</P><P> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)</P><P> at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)</P><P> at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)</P><P> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)</P><P> at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)</P><P> at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)</P><P> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)</P><P> at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)</P><P> at java.lang.Thread.run(Thread.java:745)</P> Wed, 05 Jun 2019 15:35:24 GMT rupakd 2019-06-05T15:35:24Z https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241956#M203759 <P>I am new to Hortonwork. I have installed Hortonworks. Clicking on "Files View" in Ambari. On Service check complete it is showing me the below-mentioned error. How to solve this issue</P><P>Service 'hdfs' check failed:</P><P>java.lang.NullPointerException</P><P> at org.apache.ambari.server.view.ClusterImpl.getConfigByType(ClusterImpl.java:72)</P><P> at org.apache.ambari.view.utils.hdfs.ConfigurationBuilder.copyPropertiesBySite(ConfigurationBuilder.java:223)</P><P> at org.apache.ambari.view.utils.hdfs.ConfigurationBuilder.buildConfig(ConfigurationBuilder.java:358)</P><P> at org.apache.ambari.view.utils.hdfs.HdfsApi.&lt;init&gt;(HdfsApi.java:75)</P><P> at org.apache.ambari.view.utils.hdfs.HdfsUtil.getHdfsApi(HdfsUtil.java:157)</P><P> at org.apache.ambari.view.utils.hdfs.HdfsUtil.connectToHDFSApi(HdfsUtil.java:145)</P><P> at org.apache.ambari.view.commons.hdfs.HdfsService.hdfsSmokeTest(HdfsService.java:145)</P><P> at org.apache.ambari.view.filebrowser.HelpService.hdfsStatus(HelpService.java:95)</P><P> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</P><P> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)</P><P> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</P><P> at java.lang.reflect.Method.invoke(Method.java:498)</P><P> at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)</P><P> at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)</P><P> at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)</P><P> at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)</P><P> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)</P><P> at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)</P><P> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)</P><P> at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)</P><P> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)</P><P> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)</P><P> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)</P><P> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)</P><P> at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)</P><P> at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:291)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.apache.ambari.server.security.authentication.AmbariDelegatingAuthenticationFilter.doFilter(AmbariDelegatingAuthenticationFilter.java:135)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.apache.ambari.server.security.authorization.AmbariUserAuthorizationFilter.doFilter(AmbariUserAuthorizationFilter.java:95)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)</P><P> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)</P><P> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)</P><P> at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)</P><P> at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)</P><P> at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)</P><P> at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)</P><P> at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:73)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:53)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.view.AmbariViewsMDCLoggingFilter.doFilter(AmbariViewsMDCLoggingFilter.java:56)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.view.ViewThrottleFilter.doFilter(ViewThrottleFilter.java:161)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:130)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:130)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:51)</P><P> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)</P><P> at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)</P><P> at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)</P><P> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)</P><P> at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)</P><P> at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)</P><P> at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)</P><P> at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)</P><P> at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242)</P><P> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)</P><P> at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:740)</P><P> at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:221)</P><P> at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:210)</P><P> at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:151)</P><P> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)</P><P> at org.eclipse.jetty.server.Server.handle(Server.java:503)</P><P> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)</P><P> at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)</P><P> at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)</P><P> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)</P><P> at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)</P><P> at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)</P><P> at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)</P><P> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)</P><P> at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)</P><P> at java.lang.Thread.run(Thread.java:745)</P> Wed, 05 Jun 2019 15:35:24 GMT https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241956#M203759 rupakd 2019-06-05T15:35:24Z https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241957#M203760 <P><A rel="user" href="https://community.cloudera.com/users/114543/rupakd.html">@Rupak Dum</A></P><P>Are you sure that you have installed HDP (not HDF, because HDF does not provide hdfs by default). </P><P>Based on the error it looks like ambari is not able to find the HDFS settings (core-site / hdfs-site) So are you sure that HDFS is installed in your cluster?</P><P><BR /></P><PRE>java.lang.NullPointerException &nbsp; &nbsp;&nbsp;at org.apache.ambari.server.view.ClusterImpl.getConfigByType(ClusterImpl.java:72) &nbsp; &nbsp;&nbsp;at org.apache.ambari.view.utils.hdfs.ConfigurationBuilder.copyPropertiesBySite(ConfigurationBuilder.java:223)&nbsp; &nbsp;&nbsp; &nbsp; &nbsp; at org.apache.ambari.view.utils.hdfs.ConfigurationBuilder.buildConfig(ConfigurationBuilder.java:358)</PRE><P><BR /></P><P>As File View will refer to the core-site and hdfs-site details using ambari cluster APIs to get the HDFS details when you try to open the File View.</P><P><BR /></P> Wed, 05 Jun 2019 15:37:27 GMT https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241957#M203760 jsensharma 2019-06-05T15:37:27Z https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241958#M203761 <P><A rel="user" href="https://community.cloudera.com/users/3418/jsensharma.html" nodeid="3418">@Jay Kumar SenSharma</A></P><P>I have created a local repository and downloaded Tarball from the URL <A href="https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.3.0/bk_ambari-installation/content/hdp_31_repositories.html">https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.3.0/bk_ambari-installation/content/hdp_31_repositories.html</A> </P><P>to install the HDP.</P> Wed, 05 Jun 2019 17:11:59 GMT https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241958#M203761 rupakd 2019-06-05T17:11:59Z https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241959#M203762 <P><A rel="user" href="https://community.cloudera.com/users/114543/rupakd.html" nodeid="114543">@Rupak Dum</A></P><P>Can you please try the below step and then see if it works for you?</P><P><BR /></P><P>1. Login to Ambari UI and then click on HDFS --&gt; Actions (Drop Down) --&gt; <STRONG>Run Service Check.</STRONG> </P><P>2. Once the HDFS Service check runs successfully then try to create a new File View Instance from :</P><P><STRONG>Ambari UI --&gt; Admin (Drop Down at top right corner) --&gt; Manage Ambari --&gt; Views --&gt; File View </STRONG> (Click on create new instance button and create a new FileView instance and then try to access the new File View Instance and then check if you are still getting the same error?</P><P><BR /></P><P><BR /></P> Wed, 05 Jun 2019 19:15:28 GMT https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241959#M203762 jsensharma 2019-06-05T19:15:28Z https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241960#M203763 <P><A rel="user" href="https://community.cloudera.com/users/3418/jsensharma.html" nodeid="3418">@Jay Kumar SenSharma</A></P><P>Thanks for the solution. By following the steps you suggested the issue is solved</P> Wed, 05 Jun 2019 22:59:04 GMT https://community.cloudera.com/t5/Support-Questions/Error-on-quot-Files-View-quot-in-Ambari/m-p/241960#M203763 rupakd 2019-06-05T22:59:04Z