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Hadoop, mail # dev - TaskTracker not starting on all nodes


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Re: TaskTracker not starting on all nodes
Allen Wittenauer 2011-03-12, 16:31

(Removing common-dev, because this isn't a dev question)

On Feb 26, 2011, at 7:25 AM, bikash sharma wrote:

> Hi,
> I have a 10 nodes Hadoop cluster, where I am running some benchmarks for
> experiments.
> Surprisingly, when I initialize the Hadoop cluster
> (hadoop/bin/start-mapred.sh), in many instances, only some nodes have
> TaskTracker process up (seen using jps), while other nodes do not have
> TaskTrackers. Could anyone please explain?

Check your logs.