Return-Path: Delivered-To: apmail-lucene-hadoop-dev-archive@locus.apache.org Received: (qmail 48624 invoked from network); 13 Feb 2007 16:59:27 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 13 Feb 2007 16:59:27 -0000 Received: (qmail 52107 invoked by uid 500); 13 Feb 2007 16:59:34 -0000 Delivered-To: apmail-lucene-hadoop-dev-archive@lucene.apache.org Received: (qmail 51994 invoked by uid 500); 13 Feb 2007 16:59:34 -0000 Mailing-List: contact hadoop-dev-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hadoop-dev@lucene.apache.org Delivered-To: mailing list hadoop-dev@lucene.apache.org Received: (qmail 51979 invoked by uid 99); 13 Feb 2007 16:59:34 -0000 Received: from herse.apache.org (HELO herse.apache.org) (140.211.11.133) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 13 Feb 2007 08:59:34 -0800 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests= X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO brutus.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 13 Feb 2007 08:59:25 -0800 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id B38E87142CC for ; Tue, 13 Feb 2007 08:59:05 -0800 (PST) Message-ID: <22240913.1171385945731.JavaMail.jira@brutus> Date: Tue, 13 Feb 2007 08:59:05 -0800 (PST) From: "Hadoop QA (JIRA)" To: hadoop-dev@lucene.apache.org Subject: [jira] Commented: (HADOOP-1009) Infinite loop in chooseTarget In-Reply-To: <28458003.1171302485494.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/HADOOP-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12472763 ] Hadoop QA commented on HADOOP-1009: ----------------------------------- +1, because http://issues.apache.org/jira/secure/attachment/12350981/chooseTargetLoop.patch applied and successfully tested against trunk revision r506778. > Infinite loop in chooseTarget > ----------------------------- > > Key: HADOOP-1009 > URL: https://issues.apache.org/jira/browse/HADOOP-1009 > Project: Hadoop > Issue Type: Bug > Components: dfs > Reporter: dhruba borthakur > Assigned To: dhruba borthakur > Attachments: chooseTargetLoop.patch > > > I am seeing the namenode hangs with 99% CPU usage. The stack trace invariably shows the following stack trace. > - java.util.Random.next(int) @bci=35, line=141 (Compiled frame; information may be imprecise) > - java.util.Random.nextInt(int) @bci=40, line=255 (Compiled frame) > - org.apache.hadoop.dfs.FSNamesystem$Replicator.chooseRandom(int, org.apache.hadoop.dfs.DatanodeDescriptor[], java.util.List, long, int, java.util.List) @bci=7, line=2986 (Interpreted frame) > - org.apache.hadoop.dfs.FSNamesystem$Replicator.chooseTarget(int, org.apache.hadoop.dfs.DatanodeDescriptor, org.apache.hadoop.dfs.DatanodeDescriptor[], java.util.List, long, int, java.util.List) @bci=211, line=2810 (Interpreted frame) > - org.apache.hadoop.dfs.FSNamesystem$Replicator.chooseTarget(int, org.apache.hadoop.dfs.DatanodeDescriptor, java.util.List, java.util.List, long) @bci=141, line=2764 (Interpreted frame) > - org.apache.hadoop.dfs.FSNamesystem$Replicator.chooseTarget(int, org.apache.hadoop.dfs.DatanodeDescriptor, java.util.List, long) @bci=25, line=2716 (Interpreted frame) > - org.apache.hadoop.dfs.FSNamesystem.startFile(org.apache.hadoop.io.UTF8, org.apache.hadoop.io.UTF8, org.apache.hadoop.io.UTF8, boolean, short, long) @bci=579, line=709 (Interpreted frame) > - org.apache.hadoop.dfs.NameNode.create(java.lang.String, java.lang.String, java.lang.String, boolean, short, long) @bci=97, line=270 (Interpreted frame) > - sun.reflect.GeneratedMethodAccessor5.invoke(java.lang.Object, java.lang.Object[]) @bci=238 (Interpreted frame) > - sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=25 (Interpreted frame) > - java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=111, line=585 (Interpreted frame) > - org.apache.hadoop.ipc.RPC$Server.call(org.apache.hadoop.io.Writable) @bci=64, line=337 (Compiled frame) > - org.apache.hadoop.ipc.Server$Handler.run() @bci=351, line=538 (Interpreted frame) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.