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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7324) HDFS HA--- Usage message is misleading
Date Mon, 03 Nov 2014 07:02:33 GMT
Brahma Reddy Battula created HDFS-7324:

             Summary: HDFS HA--- Usage message is misleading
                 Key: HDFS-7324
                 URL: https://issues.apache.org/jira/browse/HDFS-7324
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Brahma Reddy Battula
            Assignee: Brahma Reddy Battula

Try the help command for hadadmin like following..
Here usage is coming as "DFSHAAdmin -ns", Ideally this not availble which we can check following

[root@linux156 bin]#  *{color:red}./hdfs haadmin{color}* 
No GC_PROFILE is given. Defaults to medium.
 *{color:red}Usage: DFSHAAdmin [-ns <nameserviceId>]{color}* 
    [-transitionToActive <serviceId> [--forceactive]]
    [-transitionToStandby <serviceId>]
    [-failover [--forcefence] [--forceactive] <serviceId> <serviceId>]
    [-getServiceState <serviceId>]
    [-checkHealth <serviceId>]
    [-help <command>]

Generic options supported are
-conf <configuration file>     specify an application configuration file
-D <property=value>            use value for given property
-fs <local|namenode:port>      specify a namenode
-jt <local|jobtracker:port>    specify a job tracker
-files <comma separated list of files>    specify comma separated files to be copied
to the map reduce cluster
-libjars <comma separated list of jars>    specify comma separated jar files to include
in the classpath.
-archives <comma separated list of archives>    specify comma separated archives to
be unarchived on the compute machines.

The general command line syntax is
bin/hadoop command [genericOptions] [commandOptions]

 *{color:blue}[root@linux156 bin]# ./hdfs DFSHAAdmin -ns 100{color}*  
Error: Could not find or load main class DFSHAAdmin

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