Return-Path: X-Original-To: apmail-hadoop-yarn-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-yarn-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 247EC18D7E for ; Wed, 1 Jul 2015 00:14:06 +0000 (UTC) Received: (qmail 81784 invoked by uid 500); 1 Jul 2015 00:14:06 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 81743 invoked by uid 500); 1 Jul 2015 00:14:06 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: yarn-issues@hadoop.apache.org Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 81728 invoked by uid 99); 1 Jul 2015 00:14:05 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Jul 2015 00:14:05 +0000 Date: Wed, 1 Jul 2015 00:14:05 +0000 (UTC) From: "Varun Saxena (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-3793) Several NPEs when deleting local files on NM recovery 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/YARN-3793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609302#comment-14609302 ] Varun Saxena commented on YARN-3793: ------------------------------------ [~kasha@cloudera.com] / [~jlowe], kindly review > Several NPEs when deleting local files on NM recovery > ----------------------------------------------------- > > Key: YARN-3793 > URL: https://issues.apache.org/jira/browse/YARN-3793 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Affects Versions: 2.6.0 > Reporter: Karthik Kambatla > Assignee: Varun Saxena > Attachments: YARN-3793.01.patch, YARN-3793.02.patch > > > When NM work-preserving restart is enabled, we see several NPEs on recovery. These seem to correspond to sub-directories that need to be deleted. I wonder if null pointers here mean incorrect tracking of these resources and a potential leak. This JIRA is to investigate and fix anything required. > Logs show: > {noformat} > 2015-05-18 07:06:10,225 INFO org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor: Deleting absolute path : null > 2015-05-18 07:06:10,224 ERROR org.apache.hadoop.yarn.server.nodemanager.DeletionService: Exception during execution of task in DeletionService > java.lang.NullPointerException > at org.apache.hadoop.fs.FileContext.fixRelativePart(FileContext.java:274) > at org.apache.hadoop.fs.FileContext.delete(FileContext.java:755) > at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.deleteAsUser(DefaultContainerExecutor.java:458) > at org.apache.hadoop.yarn.server.nodemanager.DeletionService$FileDeletionTask.run(DeletionService.java:293) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)