Ayush Saxena created HDFS-14656:
-----------------------------------
Summary: RBF: NPE in RBFMetrics
Key: HDFS-14656
URL: https://issues.apache.org/jira/browse/HDFS-14656
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Ayush Saxena
Assignee: Ayush Saxena
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.federation.metrics.RBFMetrics.getActiveNamenodeRegistrations(RBFMetrics.java:726)
at
org.apache.hadoop.hdfs.server.federation.metrics.RBFMetrics.getNameserviceAggregatedInt(RBFMetrics.java:688)
at
org.apache.hadoop.hdfs.server.federation.metrics.RBFMetrics.getNumInMaintenanceDeadDataNodes(RBFMetrics.java:467)
at
org.apache.hadoop.hdfs.server.federation.metrics.NamenodeBeanMetrics.getNumInMaintenanceDeadDataNodes(NamenodeBeanMetrics.java:693)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
at
com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
at
com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83)
at
com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206)
at javax.management.StandardMBean.getAttribute(StandardMBean.java:372)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
... 42 more
2019-07-16 19:35:35,228 [qtp1811922029-78] ERROR jmx.JMXJsonServlet
(JMXJsonServlet.java:writeAttribute(345)) - getting attribute
NumEnteringMaintenanceDataNodes of Hadoop:service=NameNode,name=FSNamesystem-3
threw an exception
javax.management.RuntimeMBeanException: java.lang.NullPointerException
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:651)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
at
org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:338)
at
org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:316)
at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:210)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772)
at
org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:644)
at
org.apache.hadoop.security.authentication.server.ProxyUserAuthenticationFilter.doFilter(ProxyUserAuthenticationFilter.java:104)
at
org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:592)
at org.apache.hadoop.hdfs.web.AuthFilter.doFilter(AuthFilter.java:51)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
at
org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:110)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
at
org.apache.hadoop.http.HttpServer2$QuotingInputFilter.doFilter(HttpServer2.java:1604)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:539)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:748)
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