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https://issues.apache.org/jira/browse/HDFS-4957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15621981#comment-15621981
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Aliza Itzkowitz commented on HDFS-4957:
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is this a duplicate of https://issues.apache.org/jira/browse/HDFS-10719 ?
> NameNode failover should not fail because a DNS entry for a quorum node
> cannot be resolved
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-4957
> URL: https://issues.apache.org/jira/browse/HDFS-4957
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: qjm
> Affects Versions: 2.3.0, 2.6.0
> Reporter: Colin P. McCabe
> Assignee: John Zhuge
>
> When a StandbyNameNode is becoming active, we should not bail out because a
> DNS entry for a quorum node cannot be resolved. Currently it does fail in
> this scenario, with a message like this:
> {code}
> 2013-07-03 21:28:40,576 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Starting services
> required for active state
> 2013-07-03 21:28:40,579 FATAL
> org.apache.hadoop.hdfs.server.namenode.NameNode: Error encountered requiring
> NN shutdown. Shutting down immediately.
> java.lang.IllegalArgumentException: Unable to construct journal,
> qjournal://hadoop-mm:8485;hadoop-nn-0:8485;hadoop-nn-1:8485/hadoop
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1254)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.initJournals(FSEditLog.java:226)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.initJournalsForWrite(FSEditLog.java:193)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startActiveServices(FSNamesystem.java:722)
> <etc>
> {code}
> reported by Matt Bookman
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