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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9043) Doc updation for commands in HDFS Federation
Date Thu, 10 Sep 2015 13:15:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14738721#comment-14738721

Allen Wittenauer commented on HDFS-9043:


It's worth noting that your replacement balancer command does something slightly different.
 The previous version starts it as a daemon.  If it was intentionally meant to be a daemon,
then we need to add a {{--daemon start}} to the replacement.

There's likely other fixes that need to go in place now that more of the shell rewrite is
in place.  (e.g., get rid of all of the hadoop-daemon commands)

> Doc updation for commands in HDFS Federation
> --------------------------------------------
>                 Key: HDFS-9043
>                 URL: https://issues.apache.org/jira/browse/HDFS-9043
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: documentation
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>            Priority: Minor
> 1. command is wrong 
> {noformat}
>  $HADOOP_PREFIX/bin/hdfs dfsadmin -refreshNameNode <datanode_host_name>:<datanode_rpc_port>
> {noformat}
> Correct command is : hdfs dfsadmin -refreshNameNode's'
> 2.command is wrong 
> {noformat}
>  $HADOOP_PREFIX/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR --script $HADOOP_PREFIX/bin/hdfs
start balancer 
> {noformat}
> Correct command is : *hdfs balancer -policy*
> 3. Reference link to balancer for further details is wrong
> {noformat}
> Note that Balancer only balances the data and does not balance the namespace. For the
complete command usage, see balancer.
> {noformat}
> 4. URL is not proper 
> {noformat}
> Similar to the Namenode status web page, when using federation a Cluster Web Console
is available to monitor the federated cluster at http://<any_nn_host:port>/dfsclusterhealth.jsp.
> {noformat}

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