FAQ
Thanks James. Well all the config. files and shared keys are on a shared
storage that is accessed by all the nodes in the cluster.
At times, everything runs fine on initialization, but at other times, the
same problem persists, so was bit confused.
Also, checked the TaskTracker logs on those nodes, there does not seem to be
any error.

-bikash
On Sat, Feb 26, 2011 at 10:30 AM, James Seigel wrote:

Maybe your ssh keys aren’t distributed the same on each machine or the
machines aren’t configured the same?

J

On 2011-02-26, at 8:25 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?

Thanks,
Bikash

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