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 E734A11F7F for ; Mon, 14 Apr 2014 23:17:18 +0000 (UTC) Received: (qmail 98261 invoked by uid 500); 14 Apr 2014 23:17:15 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 98207 invoked by uid 500); 14 Apr 2014 23:17:15 -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 98196 invoked by uid 99); 14 Apr 2014 23:17:15 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 14 Apr 2014 23:17:15 +0000 Date: Mon, 14 Apr 2014 23:17:15 +0000 (UTC) From: "Karthik Kambatla (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-1934) Potential NPE in ZKRMStateStore caused by handling Disconnected event from ZK. 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-1934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13968987#comment-13968987 ] Karthik Kambatla commented on YARN-1934: ---------------------------------------- Working on a patch, will try to post something later today or tomorrow. > Potential NPE in ZKRMStateStore caused by handling Disconnected event from ZK. > ------------------------------------------------------------------------------ > > Key: YARN-1934 > URL: https://issues.apache.org/jira/browse/YARN-1934 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 2.4.0 > Reporter: Rohith > Assignee: Karthik Kambatla > Priority: Critical > Attachments: RM.txt > > > For ZK disconnected event , zkClient is set to null. It is very much prone to throw NPE. > {noformat} > case Disconnected: > LOG.info("ZKRMStateStore Session disconnected"); > oldZkClient = zkClient; > zkClient = null; > break; > {noformat} -- This message was sent by Atlassian JIRA (v6.2#6252)