[jira] [Commented] (HBASE-18296) NPE in ProcedureExecutor.removeChore
[
https://issues.apache.org/jira/browse/HBASE-18296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16115661#comment-16115661
]
Ping Liu commented on HBASE-18296:
--
[~mdrob]
Do you remember which test it is where you found this error? There are many
places where HRegionServer starts up. It'll be great if the specific test can
be identified.
> NPE in ProcedureExecutor.removeChore
>
>
> Key: HBASE-18296
> URL: https://issues.apache.org/jira/browse/HBASE-18296
> Project: HBase
> Issue Type: Bug
> Components: proc-v2
>Affects Versions: 2.0.0-alpha-1
>Reporter: Mike Drob
>
> Saw this in logs while debugging other failing tests:
> {noformat}
> 2017-06-29 13:54:15,995 ERROR [M:0;172.18.16.40:55484]
> server.NIOServerCnxnFactory$1(44): Thread
> Thread[M:0;172.18.16.40:55484,5,FailOnTimeoutGroup] died
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.removeChore(ProcedureExecutor.java:656)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.stop(AssignmentManager.java:233)
> at
> org.apache.hadoop.hbase.master.HMaster.stopServiceThreads(HMaster.java:1154)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:1189)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> I think it was related to an initialization failure, but we should code more
> defensively anyway
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[jira] [Commented] (HBASE-10998) NPE jmx.JMXJsonServlet: getting attribute
[
https://issues.apache.org/jira/browse/HBASE-10998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16065152#comment-16065152
]
Ping Liu commented on HBASE-10998:
--
@Stack and Rural,
Could you describe how you saw this exception? I try to reproduce it but don't
know how to start. Any steps to take? Any test case? Thanks!
> NPE jmx.JMXJsonServlet: getting attribute
> -
>
> Key: HBASE-10998
> URL: https://issues.apache.org/jira/browse/HBASE-10998
> Project: HBase
> Issue Type: Bug
> Components: metrics
>Reporter: stack
>Priority: Minor
> Labels: beginner
>
> Saw this running tcollector against trunk.
> {code}
> 2014-04-15 22:22:10,426 ERROR [775807613@qtp-923083575-14]
> jmx.JMXJsonServlet: getting attribute
> Namespace_default_table_myTestSplit_region_72100881c92b0c568ed37721842245a6_metric_get_max
> of Hadoop:service=HBase,name=RegionServer,sub=Regions 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: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: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.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$QuotingInputFilter.doFilter(HttpServer.java:1087)
> at
> org.mortbay.jetty.servlet.ServletHandler$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
> org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateAttrCache(MetricsSourceAdapter.java:241)
> at
> org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateJmxCache(MetricsSourceAdapter.java:176)
> at
> org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getAttribute(MetricsSourceAdapter.java:101)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
> ... 29 more
> {code}
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