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From: Apache Wiki <wikidiffs@apache.org>
To: core-commits@hadoop.apache.org
Date: Sat, 13 Dec 2008 00:08:41 -0000
Message-ID: <20081213000841.1841.88226@eos.apache.org>
Subject: [Hadoop Wiki] Update of "FAQ" by AaronKimball

Dear Wiki user,

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The following page has been changed by AaronKimball:
http://wiki.apache.org/hadoop/FAQ

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  $ bin/hadoop-daemon.sh start tasktracker
  }}}
  
+ [[BR]]
+ [[Anchor(26)]]
+ '''26. [#26 Is there an easy way to see the status and health of my cluster?]'''
+ 
+ There are web-based interfaces to both the JobTracker (MapReduce master) and NameNode (HDFS master) which display status pages about the state of the entire system. By default, these are located at http://job.tracker.addr:50030/ and http://name.node.addr:50070/.
+ 
+ The JobTracker status page will display the state of all nodes, as well as the job queue and status about all currently running jobs and tasks. The NameNode status page will display the state of all nodes and the amount of free space, and provides the ability to browse the DFS via the web. 
+ 
+ You can also see some basic HDFS cluster health data by running:
+ {{{
+ $ bin/hadoop dfsadmin -report
+ }}}
+