ambari-server启动WARN qtp-ambari-client-87] ServletHandler: 563 /api/v1/stacks/HDP/versions/2.4/recommendations java.lang.NullPointerException报错解决办法（图文详解）
问题详情
来源是，我在Ambari集群里，安装Hue。
给Ambari集群里安装可视化分析利器工具Hue步骤（图文详解
所遇到的这个问题。
然后，去ambari-server的log日志，查看，如下 cat /var/log/ambari-server.log
SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointerException at org.apache.ambari.server.state.PropertyInfo.getAttributesMap(PropertyInfo.java:145) at org.apache.ambari.server.state.PropertyInfo.convertToResponse(PropertyInfo.java:128) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3898) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3867) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:114) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.AbstractResourceProvider.getResources(AbstractResourceProvider.java:302) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider.getResources(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ExtendedResourceProviderWrapper.queryForResources(ClusterControllerImpl.java:945) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.getResources(ClusterControllerImpl.java:132) at org.apache.ambari.server.api.query.QueryImpl.doQuery(QueryImpl.java:508) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:463) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:482) at org.apache.ambari.server.api.query.QueryImpl.queryForResources(QueryImpl.java:436) at org.apache.ambari.server.api.query.QueryImpl.execute(QueryImpl.java:216) at org.apache.ambari.server.api.handlers.ReadHandler.handleRequest(ReadHandler.java:68) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.getServicesInformation(StackAdvisorCommand.java:356) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.invoke(StackAdvisorCommand.java:247) at org.apache.ambari.server.api.services.stackadvisor.StackAdvisorHelper.recommend(StackAdvisorHelper.java:109) at org.apache.ambari.server.controller.internal.RecommendationResourceProvider.createResources(RecommendationResourceProvider.java:92) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:289) at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:76) at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:36) at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.RecommendationService.getRecommendation(RecommendationService.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:540) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:715) at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:196) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:109) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82) at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:216) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:205) at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:139) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745) Aug 01, 2017 4:25:57 PM com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointerException at org.apache.ambari.server.state.PropertyInfo.getAttributesMap(PropertyInfo.java:145) at org.apache.ambari.server.state.PropertyInfo.convertToResponse(PropertyInfo.java:128) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3898) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3867) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:114) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.AbstractResourceProvider.getResources(AbstractResourceProvider.java:302) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider.getResources(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ExtendedResourceProviderWrapper.queryForResources(ClusterControllerImpl.java:945) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.getResources(ClusterControllerImpl.java:132) at org.apache.ambari.server.api.query.QueryImpl.doQuery(QueryImpl.java:508) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:463) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:482) at org.apache.ambari.server.api.query.QueryImpl.queryForResources(QueryImpl.java:436) at org.apache.ambari.server.api.query.QueryImpl.execute(QueryImpl.java:216) at org.apache.ambari.server.api.handlers.ReadHandler.handleRequest(ReadHandler.java:68) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.getServicesInformation(StackAdvisorCommand.java:356) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.invoke(StackAdvisorCommand.java:247) at org.apache.ambari.server.api.services.stackadvisor.StackAdvisorHelper.recommend(StackAdvisorHelper.java:109) at org.apache.ambari.server.controller.internal.RecommendationResourceProvider.createResources(RecommendationResourceProvider.java:92) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:289) at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:76) at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:36) at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.RecommendationService.getRecommendation(RecommendationService.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:540) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:715) at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:196) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:109) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82) at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:216) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:205) at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:139) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745) Aug 01, 2017 4:26:14 PM com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointerException at org.apache.ambari.server.state.PropertyInfo.getAttributesMap(PropertyInfo.java:145) at org.apache.ambari.server.state.PropertyInfo.convertToResponse(PropertyInfo.java:128) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3898) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3867) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:114) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.AbstractResourceProvider.getResources(AbstractResourceProvider.java:302) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider.getResources(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ExtendedResourceProviderWrapper.queryForResources(ClusterControllerImpl.java:945) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.getResources(ClusterControllerImpl.java:132) at org.apache.ambari.server.api.query.QueryImpl.doQuery(QueryImpl.java:508) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:463) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:482) at org.apache.ambari.server.api.query.QueryImpl.queryForResources(QueryImpl.java:436) at org.apache.ambari.server.api.query.QueryImpl.execute(QueryImpl.java:216) at org.apache.ambari.server.api.handlers.ReadHandler.handleRequest(ReadHandler.java:68) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.getServicesInformation(StackAdvisorCommand.java:356) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.invoke(StackAdvisorCommand.java:247) at org.apache.ambari.server.api.services.stackadvisor.StackAdvisorHelper.recommend(StackAdvisorHelper.java:109) at org.apache.ambari.server.controller.internal.RecommendationResourceProvider.createResources(RecommendationResourceProvider.java:92) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:289) at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:76) at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:36) at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.RecommendationService.getRecommendation(RecommendationService.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:540) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:715) at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:196) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:109) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82) at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:216) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:205) at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:139) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745) Aug 01, 2017 4:26:19 PM com.sun.jersey.spi.inject.Errors processErrorMessages WARNING: The following warnings have been detected with resource and/or provider classes: WARNING: A HTTP GET method, public javax.ws.rs.core.Response org.apache.ambari.server.api.services.ActiveWidgetLayoutService.getServices(java.lang.String,javax.ws.rs.core.HttpHeaders,javax.ws.rs.core.UriInfo), should not consume any entity. Aug 01, 2017 4:26:29 PM com.sun.jersey.spi.inject.Errors processErrorMessages WARNING: The following warnings have been detected with resource and/or provider classes: WARNING: A HTTP GET method, public javax.ws.rs.core.Response org.apache.ambari.server.api.services.HostComponentService.getHostComponents(java.lang.String,javax.ws.rs.core.HttpHeaders,javax.ws.rs.core.UriInfo), should not consume any entity. WARNING: A HTTP GET method, public javax.ws.rs.core.Response org.apache.ambari.server.api.services.HostComponentService.getHostComponent(java.lang.String,javax.ws.rs.core.HttpHeaders,javax.ws.rs.core.UriInfo,java.lang.String,java.lang.String), should not consume any entity. Aug 01, 2017 4:40:07 PM com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointerException at org.apache.ambari.server.state.PropertyInfo.getAttributesMap(PropertyInfo.java:145) at org.apache.ambari.server.state.PropertyInfo.convertToResponse(PropertyInfo.java:128) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3898) at org.apache.ambari.server.controller.AmbariManagementControllerImpl.getStackConfigurations(AmbariManagementControllerImpl.java:3867) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:114) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider$1.invoke(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.AbstractResourceProvider.getResources(AbstractResourceProvider.java:302) at org.apache.ambari.server.controller.internal.StackConfigurationResourceProvider.getResources(StackConfigurationResourceProvider.java:111) at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ExtendedResourceProviderWrapper.queryForResources(ClusterControllerImpl.java:945) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.getResources(ClusterControllerImpl.java:132) at org.apache.ambari.server.api.query.QueryImpl.doQuery(QueryImpl.java:508) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:463) at org.apache.ambari.server.api.query.QueryImpl.queryForSubResources(QueryImpl.java:482) at org.apache.ambari.server.api.query.QueryImpl.queryForResources(QueryImpl.java:436) at org.apache.ambari.server.api.query.QueryImpl.execute(QueryImpl.java:216) at org.apache.ambari.server.api.handlers.ReadHandler.handleRequest(ReadHandler.java:68) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.getServicesInformation(StackAdvisorCommand.java:356) at org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand.invoke(StackAdvisorCommand.java:247) at org.apache.ambari.server.api.services.stackadvisor.StackAdvisorHelper.recommend(StackAdvisorHelper.java:109) at org.apache.ambari.server.controller.internal.RecommendationResourceProvider.createResources(RecommendationResourceProvider.java:92) at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:289) at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:76) at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:36) at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72) at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:106) at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:75) at org.apache.ambari.server.api.services.RecommendationService.getRecommendation(RecommendationService.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:540) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:715) at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:196) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:109) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82) at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:216) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:205) at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:139) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745)
WARN qtp-ambari-client-87] ServletHandler: 563 /api/v1/stacks/HDP/versions/2.4/recommendations java.lang.NullPointerException root@nssa-sensor1:/var/log/ambari-server#
解决办法
缺少ambari服务依赖。（但是以下的这种方法，不一定能帮助）
1、centos或redhat系统下
运行 yum install ambari-server ，安装后无需启动
2、ubuntu系统下
运行sudo apt-get install ambari-server，安装后无需启动。
网址是
https://community.hortonworks.com/questions/7886/getting-500-status-code-received-on-post-method-fo.html
找到如下的解决办法
见网址
https://community.hortonworks.com/questions/20603/500-status-code-received-on-get-method-for-api-api.html
sudo chown -R ambari /var/run/ambari-server
是为什么呢，
那是因为
在我下面的这篇博客里
Ubuntu14.04下Ambari安装搭建部署大数据集群（图文分五大步详解）（博主强烈推荐）
那是因为，我当时，没有使用默认的root，也没有使用规范的ambari。而是使用了自己的bigdata
然后，再重启
但是，这样做下来，问题还是没有得到解决！
再次科学上网，查找
https://community.hortonworks.com/questions/102840/null-pointer-exception-in-ambari-server-logs-after.html
The issue that you are afcing indicates Ambari DB Corruption. As we see that /request URL itslef is throwing NullPointerException so it will not be able to process any further request.
15 May 2017 07:16:14,016 WARN [qtp-ambari-client-26] ServletHandler:563 - /api/v1/clusters/hadoop/requests java.lang.NullPointerException
If you started noticing this issue happening after installing HUE service then please delete the HUE service from ambari Database completely by running the following queries on Ambari DB and then restart ambari server to see if it fixes your issue.
delete from hostcomponentstate where service_name = 'hue';
delete from hostcomponentdesiredstate where service_name = 'hue';
delete from servicecomponentdesiredstate where service_name = 'hue';
delete from servicedesiredstate where service_name = 'hue';
delete from serviceconfighosts where service_config_id in (select service_config_id from serviceconfig where service_name = 'hue');
delete from serviceconfigmapping where service_config_id in (select service_config_id from serviceconfig where service_name = 'hue');
delete from serviceconfig where service_name = 'hue';
delete from requestresourcefilter where service_name = 'hue';
delete from requestoperationlevel where service_name = 'hue';
delete from clusterservices where service_name ='hue';
delete from clusterconfig where type_name like 'hue%';
delete from clusterconfigmapping where type_name like 'hue%';
delete from servicedesiredstate where service_name like '%hue%'; delete from hostcomponentstate where component_name like '%hue%'; delete from hostcomponentdesiredstate where component_name like '%hue%'; delete from servicecomponentdesiredstate where component_name like '%hue%'; delete from clusterservices where service_name like 'hue';
delete from servicedesiredstate where service_name like '%HUE%'; delete from hostcomponentstate where component_name like '%HUE%'; delete from hostcomponentdesiredstate where component_name like '%HUE%'; delete from servicecomponentdesiredstate where component_name like '%HUE%'; delete from clusterservices where service_name like 'HUE';
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