[ https://issues.apache.org/jira/browse/HBASE-14707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rural Hunter reopened HBASE-14707: ---------------------------------- I got this error too. I'm running hbase 0.98.13 with hadoop 2.2.0 with openjdk 1.6.0_35 The error log prints every several seconds when TSDB tries to get some metrics through jmx: 2015-12-31 12:17:54,721 ERROR [419910771@qtp-433743137-595] jmx.JMXJsonServlet: getting attribute DiagnosticOptions of com.sun.management:type=HotSpotDiagnostic threw an exception javax.management.RuntimeMBeanException: java.lang.NullPointerException at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:876) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:889) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:686) at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:682) at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:341) at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:319) at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:212) at javax.servlet.http.HttpServlet.service(HttpServlet.java:735) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221) at org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:109) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1081) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.lang.NullPointerException at sun.management.Flag.getVMOption(Flag.java:67) at sun.management.HotSpotDiagnostic.getDiagnosticOptions(HotSpotDiagnostic.java:58) at sun.reflect.GeneratedMethodAccessor225.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:622) at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:74) at sun.reflect.GeneratedMethodAccessor144.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:622) at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:277) at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:181) at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:114) at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:51) at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:226) at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83) at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:207) at javax.management.StandardMBean.getAttribute(StandardMBean.java:372) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:682) ... 29 more > NPE spew getting metrics via jmx > -------------------------------- > > Key: HBASE-14707 > URL: https://issues.apache.org/jira/browse/HBASE-14707 > Project: HBase > Issue Type: Bug > Components: metrics > Reporter: stack > > See this in branch-1 tip: > {code} > 2015-10-27 08:01:08,954 INFO [main-EventThread] > replication.ReplicationTrackerZKImpl: > /hbase/rs/e1101.halxg.cloudera.com,16020,1445958006576 znode expired, > triggering replicatorRemoved event > 2015-10-27 08:01:20,645 ERROR [685943200@qtp-893835279-134] util.JSONBean: > getting attribute Value of > "org.apache.hadoop.hbase.client":type="MetricsConnection",scope="hconnection-0x33abd9d3",name="executorPoolActiveThreads" > 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.hbase.util.JSONBean.writeAttribute(JSONBean.java:235) > at org.apache.hadoop.hbase.util.JSONBean.write(JSONBean.java:209) > at org.apache.hadoop.hbase.util.JSONBean.access$000(JSONBean.java:53) > at org.apache.hadoop.hbase.util.JSONBean$1.write(JSONBean.java:96) > at > org.apache.hadoop.hbase.http.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:202) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221) > at > org.apache.hadoop.hbase.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:113) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) > at > org.apache.hadoop.hbase.http.ClickjackingPreventionFilter.doFilter(ClickjackingPreventionFilter.java:48) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) > at > org.apache.hadoop.hbase.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1354) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) > at > org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) > at > org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) > at > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450) > at > org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) > at > org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) > at > org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) > Caused by: java.lang.NullPointerException > {code} > TSDB is trying to get metrics on a period -- This message was sent by Atlassian JIRA (v6.3.4#6332)