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From "Tanping Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-1874) Programmatically start hdfs processes with JMX port open
Date Sun, 01 May 2011 04:27:03 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tanping Wang updated HDFS-1874:
-------------------------------

    Attachment: HDFS-1874.patch

Change GetConf to enable
$bin/hdfs getconf -nameNodeJmxPort
in order to grab namenode jmx port from hdfs-site.xml property.  The new property introduced
to hdfs-site.xml is

   <property>
   <name>dfs.namenode.jmxport</name>
     <value>8004</value>
     <description>namenode jmxport </description>
   </property>


> Programmatically start hdfs processes with JMX port open 
> ---------------------------------------------------------
>
>                 Key: HDFS-1874
>                 URL: https://issues.apache.org/jira/browse/HDFS-1874
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: data-node, name-node
>    Affects Versions: 0.23.0
>            Reporter: Tanping Wang
>            Assignee: Tanping Wang
>            Priority: Minor
>             Fix For: 0.23.0
>
>         Attachments: HDFS-1874.patch
>
>
> Federation web console makes JMX calls to each name node in order to collect statistics
from the name nodes.  This requires name node processes to have JMX port open for communication.
 We propose a programmatic way to start name node processes with JMX enabled.

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