Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8492610526 for ; Thu, 20 Feb 2014 06:44:29 +0000 (UTC) Received: (qmail 5681 invoked by uid 500); 20 Feb 2014 06:44:28 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 4860 invoked by uid 500); 20 Feb 2014 06:44:24 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 4819 invoked by uid 99); 20 Feb 2014 06:44:21 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 20 Feb 2014 06:44:21 +0000 Date: Thu, 20 Feb 2014 06:44:21 +0000 (UTC) From: "Liang Xie (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HADOOP-10337) ConcurrentModificationException from MetricsDynamicMBeanBase.createMBeanInfo() MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HADOOP-10337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13906671#comment-13906671 ] Liang Xie commented on HADOOP-10337: ------------------------------------ ping [~saint.ack@gmail.com] ? > 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 > 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 -- This message was sent by Atlassian JIRA (v6.1.5#6160)