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https://issues.apache.org/jira/browse/HDFS-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer updated HDFS-4210:
-----------------------------------
Labels: BB2015-05-TBR (was: )
> NameNode Format should not fail for DNS resolution on minority of JournalNode
> -----------------------------------------------------------------------------
>
> Key: HDFS-4210
> URL: https://issues.apache.org/jira/browse/HDFS-4210
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha, journal-node, namenode
> Affects Versions: 2.6.0
> Reporter: Damien Hardy
> Assignee: Charles Lamb
> Priority: Trivial
> Labels: BB2015-05-TBR
> Attachments: HDFS-4210.001.patch
>
>
> Setting :
> qjournal://cdh4master01:8485;cdh4master02:8485;cdh4worker03:8485/hdfscluster
> cdh4master01 and cdh4master02 JournalNode up and running,
> cdh4worker03 not yet provisionning (no DNS entrie)
> With :
> `hadoop namenode -format` fails with :
> 12/11/19 14:42:42 FATAL namenode.NameNode: Exception in namenode join
> java.lang.IllegalArgumentException: Unable to construct journal,
> qjournal://cdh4master01:8485;cdh4master02:8485;cdh4worker03:8485/hdfscluster
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1235)
> 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.NameNode.format(NameNode.java:745)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1099)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1204)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1233)
> ... 5 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.qjournal.client.IPCLoggerChannelMetrics.getName(IPCLoggerChannelMetrics.java:107)
> at
> org.apache.hadoop.hdfs.qjournal.client.IPCLoggerChannelMetrics.create(IPCLoggerChannelMetrics.java:91)
> at
> org.apache.hadoop.hdfs.qjournal.client.IPCLoggerChannel.<init>(IPCLoggerChannel.java:161)
> at
> org.apache.hadoop.hdfs.qjournal.client.IPCLoggerChannel$1.createLogger(IPCLoggerChannel.java:141)
> at
> org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.createLoggers(QuorumJournalManager.java:353)
> at
> org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.createLoggers(QuorumJournalManager.java:135)
> at
> org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.<init>(QuorumJournalManager.java:104)
> at
> org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.<init>(QuorumJournalManager.java:93)
> ... 10 more
> I suggest that if quorum is up format should not fails.
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