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Posted to issues@hbase.apache.org by "Uma Maheswara Rao G (Commented) (JIRA)" <ji...@apache.org> on 2012/03/30 15:42:29 UTC
[jira] [Commented] (HBASE-5680) Hbase94 and Hbase 92.2 is not
compatible with the Hadoop 23.1
[ https://issues.apache.org/jira/browse/HBASE-5680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13242330#comment-13242330 ]
Uma Maheswara Rao G commented on HBASE-5680:
--------------------------------------------
I remember, in 23 Version FSConstants has been deprecated.
{code}
@Deprecated
public abstract class FSConstants extends HdfsConstants {
}
{code}
And also HdfsConstants marked as InterfaceAudience.Private
{code}
@InterfaceAudience.Private
public class HdfsConstants {
{code}
I just commented in HDFS-1599, accessing something internal to DFS will create difficulties in later times for migrating the versions with Hadoop right. no?
> Hbase94 and Hbase 92.2 is not compatible with the Hadoop 23.1
> --------------------------------------------------------------
>
> Key: HBASE-5680
> URL: https://issues.apache.org/jira/browse/HBASE-5680
> Project: HBase
> Issue Type: Bug
> Components: master
> Reporter: Kristam Subba Swathi
>
> 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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