Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-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 3103BC748 for ; Mon, 5 Aug 2013 22:06:49 +0000 (UTC) Received: (qmail 70950 invoked by uid 500); 5 Aug 2013 22:06:48 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 70919 invoked by uid 500); 5 Aug 2013 22:06:48 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 70905 invoked by uid 99); 5 Aug 2013 22:06:48 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 05 Aug 2013 22:06:48 +0000 Date: Mon, 5 Aug 2013 22:06:48 +0000 (UTC) From: "Kihwal Lee (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-5028) LeaseRenewer throw java.util.ConcurrentModificationException when timeout 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/HDFS-5028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kihwal Lee updated HDFS-5028: ----------------------------- Fix Version/s: 0.23.10 Merged to branch-0.23. > LeaseRenewer throw java.util.ConcurrentModificationException when timeout > ------------------------------------------------------------------------- > > Key: HDFS-5028 > URL: https://issues.apache.org/jira/browse/HDFS-5028 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 1.1.0, 2.0.0-alpha > Reporter: zhaoyunjiong > Assignee: zhaoyunjiong > Fix For: 1.1.3, 0.23.10, 2.1.1-beta > > Attachments: HDFS-5028-branch-1.1.patch, HDFS-5028.patch > > > In LeaseRenewer, when renew() throw SocketTimeoutException, c.abort() will remove one dfsclient from dfsclients. Here will throw a ConcurrentModificationException because dfsclients changed after the iterator created by "for(DFSClient c : dfsclients)": > Exception in thread "org.apache.hadoop.hdfs.LeaseRenewer$1@75fa1077" java.util.ConcurrentModificationException > at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) > at java.util.AbstractList$Itr.next(AbstractList.java:343) > at org.apache.hadoop.hdfs.LeaseRenewer.run(LeaseRenewer.java:406) > at org.apache.hadoop.hdfs.LeaseRenewer.access$600(LeaseRenewer.java:69) > at org.apache.hadoop.hdfs.LeaseRenewer$1.run(LeaseRenewer.java:273) > at java.lang.Thread.run(Thread.java:662) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira