Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-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 40F8B11FDD for ; Tue, 8 Apr 2014 23:00:20 +0000 (UTC) Received: (qmail 33001 invoked by uid 500); 8 Apr 2014 23:00:18 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 32966 invoked by uid 500); 8 Apr 2014 23:00:17 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 32920 invoked by uid 99); 8 Apr 2014 23:00:16 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 08 Apr 2014 23:00:16 +0000 Date: Tue, 8 Apr 2014 23:00:16 +0000 (UTC) From: "Jing Zhao (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HADOOP-10475) ConcurrentModificationException in AbstractDelegationTokenSelector.selectToken() 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/HADOOP-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13963575#comment-13963575 ] Jing Zhao commented on HADOOP-10475: ------------------------------------ Currently we directly get the whole token map through UserGroupInformation#getTokens, and pass it around for works like token selection. Instead of doing this, we may want to provide a different API in UGI class which takes token selector as parameter and process the token selection. Another quick and simple fix is to use a ConcurrentMap for Credentials#tokenMap. > ConcurrentModificationException in AbstractDelegationTokenSelector.selectToken() > -------------------------------------------------------------------------------- > > Key: HADOOP-10475 > URL: https://issues.apache.org/jira/browse/HADOOP-10475 > Project: Hadoop Common > Issue Type: Bug > Components: security > Affects Versions: 2.4.0 > Reporter: Arpit Gupta > Assignee: Jing Zhao > > While running a hive job on a HA cluster saw ConcurrentModificationException in AbstractDelegationTokenSelector.selectToken() -- This message was sent by Atlassian JIRA (v6.2#6252)