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