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 273E8114F2 for ; Fri, 20 Jun 2014 02:38:25 +0000 (UTC) Received: (qmail 8526 invoked by uid 500); 20 Jun 2014 02:38:25 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 8490 invoked by uid 500); 20 Jun 2014 02:38:24 -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 8477 invoked by uid 99); 20 Jun 2014 02:38:24 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 20 Jun 2014 02:38:24 +0000 Date: Fri, 20 Jun 2014 02:38:24 +0000 (UTC) From: "Hadoop QA (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-5546) race condition crashes "hadoop ls -R" when directories are moved/removed 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-5546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14038289#comment-14038289 ] Hadoop QA commented on HDFS-5546: --------------------------------- {color:green}+1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12651573/HDFS-5546.2.003.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 1 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. There were no new javadoc warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in hadoop-common-project/hadoop-common. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7184//testReport/ Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7184//console This message is automatically generated. > race condition crashes "hadoop ls -R" when directories are moved/removed > ------------------------------------------------------------------------ > > Key: HDFS-5546 > URL: https://issues.apache.org/jira/browse/HDFS-5546 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.2.0 > Reporter: Colin Patrick McCabe > Assignee: Lei (Eddy) Xu > Priority: Minor > Fix For: 3.0.0 > > Attachments: HDFS-5546.1.patch, HDFS-5546.2.000.patch, HDFS-5546.2.001.patch, HDFS-5546.2.002.patch, HDFS-5546.2.003.patch > > > This seems to be a rare race condition where we have a sequence of events like this: > 1. org.apache.hadoop.shell.Ls calls DFS#getFileStatus on directory D. > 2. someone deletes or moves directory D > 3. org.apache.hadoop.shell.Ls calls PathData#getDirectoryContents(D), which calls DFS#listStatus(D). This throws FileNotFoundException. > 4. ls command terminates with FNF -- This message was sent by Atlassian JIRA (v6.2#6252)