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From "dangyifei (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5680) Improve compatibility warning about HBase with Hadoop 0.23.x
Date Thu, 09 May 2013 05:05:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13652742#comment-13652742
] 

dangyifei commented on HBASE-5680:
----------------------------------

Thank you!This issue yesterday afternoon has been resolved, that causes this error hadoop
version is not compatible with the process of compiling forget to specify in the pom.xml hadoop
version.
                
> Improve compatibility warning about HBase with Hadoop 0.23.x
> ------------------------------------------------------------
>
>                 Key: HBASE-5680
>                 URL: https://issues.apache.org/jira/browse/HBASE-5680
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.90.6, 0.92.1, 0.94.0, 0.95.2
>            Reporter: Kristam Subba Swathi
>            Assignee: Jonathan Hsieh
>             Fix For: 0.94.0, 0.95.0
>
>         Attachments: hbase-5680-94.patch
>
>
> Hmaster is not able to start because of the following error
> Please find the following error 
> ----------------------------
> 2012-03-30 11:12:19,487 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception.
Starting shutdown.
> java.lang.NoClassDefFoundError: org/apache/hadoop/hdfs/protocol/FSConstants$SafeModeAction
> 	at org.apache.hadoop.hbase.util.FSUtils.waitOnSafeMode(FSUtils.java:524)
> 	at org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:324)
> 	at org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:127)
> 	at org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:112)
> 	at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:496)
> 	at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:363)
> 	at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hdfs.protocol.FSConstants$SafeModeAction
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
> 	... 7 more
> There is a change in the FSConstants

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