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Rohith Sharma K S commented on HADOOP-12687: -------------------------------------------- Linking to YARN-4478, few useful discussion happened related to this issue. Discussion starts from this [comment|https://issues.apache.org/jira/browse/YARN-4478?focusedCommentId=15174874&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15174874] > SecureUtil#getByName should also try to resolve direct hostname, incase > multiple loopback addresses are present in /etc/hosts > ----------------------------------------------------------------------------------------------------------------------------- > > Key: HADOOP-12687 > URL: https://issues.apache.org/jira/browse/HADOOP-12687 > Project: Hadoop Common > Issue Type: Bug > Reporter: Junping Du > Assignee: Sunil G > Priority: Blocker > Labels: security > Attachments: 0001-YARN-4352.patch, 0002-YARN-4352.patch, > 0003-HADOOP-12687.patch, 0004-HADOOP-12687.patch > > > From > https://builds.apache.org/job/PreCommit-YARN-Build/9661/artifact/patchprocess/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-client-jdk1.7.0_79.txt, > we can see the tests in TestYarnClient, TestAMRMClient and TestNMClient get > timeout which can be reproduced locally. > When {{/etc/hosts}} has multiple loopback entries, > {{InetAddress.getByName(null)}} will be returning the first entry present in > etc/hosts. Hence its possible that machine hostname can be second in list and > cause {{UnKnownHostException}}. > Suggesting a direct resolve for such hostname scenarios. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org