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Posted to common-issues@hadoop.apache.org by "Karthik Palanisamy (JIRA)" <ji...@apache.org> on 2016/08/04 17:45:20 UTC
[jira] [Updated] (HADOOP-13468) In HA, Namenode is failed to start
If any of the Quorum hostname is unresolved
[ https://issues.apache.org/jira/browse/HADOOP-13468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karthik Palanisamy updated HADOOP-13468:
----------------------------------------
Attachment: HADOOP-13468-1.patch
> In HA, Namenode is failed to start If any of the Quorum hostname is unresolved
> ------------------------------------------------------------------------------
>
> Key: HADOOP-13468
> URL: https://issues.apache.org/jira/browse/HADOOP-13468
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.7.0, 2.8.0
> Environment: HDP-2.4.0
> Reporter: Karthik Palanisamy
> Attachments: HADOOP-13468-1.patch
>
>
> 2016-08-03 02:53:53,760 ERROR namenode.NameNode (NameNode.java:main(1712)) - Failed to start namenode.
> java.lang.IllegalArgumentException: Unable to construct journal, qjournal://xxxx1:8485;xxxx2:8485;xxxx3:8485/shva
> at org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1637)
> at org.apache.hadoop.hdfs.server.namenode.FSEditLog.initJournals(FSEditLog.java:282)
> at org.apache.hadoop.hdfs.server.namenode.FSEditLog.initSharedJournalsForRead(FSEditLog.java:260)
> at org.apache.hadoop.hdfs.server.namenode.FSImage.initEditLog(FSImage.java:789)
> at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:634)
> at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:294)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:983)
> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:688)
> at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:662)
> at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:726)
> at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:951)
> at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:935)
> at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1641)
> at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1707)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
> at org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1635)
> ... 13 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:178)
> at org.apache.hadoop.hdfs.qjournal.client.IPCLoggerChannel$1.createLogger(IPCLoggerChannel.java:156)
> at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.createLoggers(QuorumJournalManager.java:367)
> at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.createLoggers(QuorumJournalManager.java:149)
> at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.<init>(QuorumJournalManager.java:116)
> at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.<init>(QuorumJournalManager.java:105)
> ... 18 more
> 2016-08-03 02:53:53,765 INFO util.ExitUtil (ExitUtil.java:terminate(124)) - Exiting with status 1
> 2016-08-03 02:53:53,768 INFO namenode.NameNode (LogAdapter.java:info(47)) - SHUTDOWN_MSG:
> *and the failover is not successful*
> I have attached the patch, It allows the Namenode to start if the majority of the Quorums are resolvable.
> throws warning if the quorum is unresolvable.
> throws Unknown host exception if the majority of the journals are unresolvable.
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