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https://issues.apache.org/jira/browse/HADOOP-6636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846581#action_12846581
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Allen Wittenauer commented on HADOOP-6636:
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A few random comments:
a) mradmin -report is in 21 or 22
b) Both of these *should* report the NN and JT info and it is kind of funny
that no one noticed.
c) A separate, unprivileged command makes sense, especially when you consider
something like HADOOP-5670 .
d) PLEASE don't make the option camelCase. This is the shell, not Java. The
current camelCase options drive me batty as it is. :)
> New hadoop command to show NameNode & JobTracker assosiated with client.
> ------------------------------------------------------------------------
>
> Key: HADOOP-6636
> URL: https://issues.apache.org/jira/browse/HADOOP-6636
> Project: Hadoop Common
> Issue Type: New Feature
> Reporter: Ravi Phulari
>
> Currently there is no command to show NameNode and JobTracker associated with
> client node.
> Work around used for this is to grep for $HADOOP_CONF_DIR/hdfs-site.xml and
> mapred-site.xml .
> This process is very tedious when more than 1 hadoop clusters are configured.
> We can add hadoop command option to show which Name node and Job tracker is
> associated with client.
> Command should work something like --
> {noformat}
> [u...@clientnode ~]$hadoop clusterInfo
> NameNode - nnNode.foo.corp.com:50070
> JobTracker - jtNode.foo.corp.com:50030
> {noformat}
> *dfsadmin -report is restricted to admin only and it shows only datanodes and
> does not include NN and JT information*
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