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POHow could I programmatically get all the job tracker and tasktracker information that is displayed by Hadoop in the web interface?
 

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  1. POHow could I programmatically get all the job tracker and tasktracker information that is displayed by Hadoop in the web interface?
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    <p>I'm using Cloudera's Hadoop distribution CDH-0.20.2CDH3u0. Is there any way I could the information such as jobtracker status, tasktracker status, counters using a JAVA program running outside of hadoop framework? I tried listening using JMX but hadoop provides very less information regarding Jobtracker, tasktracker and datanode. It doesn't provide any JMX attributes related to running job state like map percent completion, reduce percent completion, task percent completion, attempt percent completion, counters status etc.</p> <p>Futhermore I tried using the metrics logs dumped by hadoop. But it too doesn't contain any information regarding map/reduce percent completion, task percent completion.</p> <p>I think, there should be some alternative way to get all those stuffs.</p> <p>Please do reply.</p>
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      1. POHow could I programmatically get all the job tracker and tasktracker information that is displayed by Hadoop in the web interface?
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