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https://issues.apache.org/jira/browse/HADOOP-10337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack updated HADOOP-10337:
---------------------------
Resolution: Fixed
Fix Version/s: 2.4.0
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Committed to branch-2.4, branch-2 and to trunk. Thank you for the patch
[~xieliang007] and the review Mr [~atm]
> ConcurrentModificationException from MetricsDynamicMBeanBase.createMBeanInfo()
> ------------------------------------------------------------------------------
>
> Key: HADOOP-10337
> URL: https://issues.apache.org/jira/browse/HADOOP-10337
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 3.0.0, 2.2.0
> Reporter: Liang Xie
> Assignee: Liang Xie
> Fix For: 2.4.0
>
> Attachments: HADOOP-10337.txt
>
>
> This stack trace came from our HBase 0.94.3 production env:
> 2014-02-11,17:34:46,562 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting
> attribute
> tbl.micloud_gallery_albumsharetag_v2.region.96a6d0bc9f0153e0e1ec0318b39ecc45.next_histogram_99th_percentile
> of hadoop:service=RegionServer,name=RegionServerDynamicStatistics threw an
> exception
> javax.management.RuntimeMBeanException:
> java.util.ConcurrentModificationException
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:856)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> at
> org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:315)
> at
> org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:293)
> at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:193)
> 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:1057)
> 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$PoolThread.run(QueuedThreadPool.java:582)
> Caused by: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$ValueIterator.next(HashMap.java:822)
> at
> org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase.createMBeanInfo(MetricsDynamicMBeanBase.java:87)
> at
> org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase.updateMbeanInfoIfMetricsListChanged(MetricsDynamicMBeanBase.java:78)
> at
> org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase.getAttribute(MetricsDynamicMBeanBase.java:138)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> ... 27 more
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