Make sure the instances' ports aren't conflicting and all directories (NN, JT, etc.) are unique. That should do it. -- Take care, Konstantin (Cos) Boudnik
On Mon, Feb 21, 2011 at 20:09, Gang Luo <[email protected]> wrote: > Hello folks, > I am trying to run multiple hadoop instances on the same cluster. I find it > hard > to share. First I try two instances, each of them run with the same master > and > slaves. Only one of them could work. I try to divide the cluster such that > hadoop 1 use machine 0-9 and hadoop 2 uses machine 10-19. Still, only one of > them could work. The HDFS of the second hadoop is working well, but > start-mapred.sh will result in such exception "java.io.IOException: Connection > reset by peer" in the log. > > > Any ideas on this or suggestion on how to run multiple hadoop instance on one > cluster? I can total divide up the cluster such that different instances run > on > different set of machines. > > Thanks. > > -Gang > > > > >
