Return-Path: X-Original-To: apmail-hadoop-mapreduce-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-mapreduce-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 7B12E18F4B for ; Sat, 18 Jul 2015 00:07:06 +0000 (UTC) Received: (qmail 39490 invoked by uid 500); 18 Jul 2015 00:07:05 -0000 Delivered-To: apmail-hadoop-mapreduce-issues-archive@hadoop.apache.org Received: (qmail 39445 invoked by uid 500); 18 Jul 2015 00:07:05 -0000 Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: mapreduce-issues@hadoop.apache.org Delivered-To: mailing list mapreduce-issues@hadoop.apache.org Received: (qmail 39370 invoked by uid 99); 18 Jul 2015 00:07:05 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 18 Jul 2015 00:07:05 +0000 Date: Sat, 18 Jul 2015 00:07:05 +0000 (UTC) From: "Vinod Kumar Vavilapalli (JIRA)" To: mapreduce-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (MAPREDUCE-6361) NPE issue in shuffle caused by concurrent issue between copySucceeded() in one thread and copyFailed() in another thread on the same host 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/MAPREDUCE-6361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Vinod Kumar Vavilapalli updated MAPREDUCE-6361: ----------------------------------------------- Labels: 2.6.1-candidate (was: ) > NPE issue in shuffle caused by concurrent issue between copySucceeded() in one thread and copyFailed() in another thread on the same host > ----------------------------------------------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-6361 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6361 > Project: Hadoop Map/Reduce > Issue Type: Bug > Affects Versions: 2.7.0 > Reporter: Junping Du > Assignee: Junping Du > Priority: Critical > Labels: 2.6.1-candidate > Fix For: 2.7.1 > > Attachments: MAPREDUCE-6361-v1.patch > > > The failure in log: > 2015-05-08 21:00:00,513 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError: error in shuffle in fetcher#25 > at org.apache.hadoop.mapreduce.task.reduce.Shuffle.run(Shuffle.java:134) > at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:376) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) > Caused by: java.lang.NullPointerException > at org.apache.hadoop.mapreduce.task.reduce.ShuffleSchedulerImpl.copyFailed(ShuffleSchedulerImpl.java:267) > at org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyFromHost(Fetcher.java:308) > at org.apache.hadoop.mapreduce.task.reduce.Fetcher.run(Fetcher.java:193) -- This message was sent by Atlassian JIRA (v6.3.4#6332)