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 <[email protected]> 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 > >
