I found what was causing trouble (which it looks like others have seen as well):
Ubuntu (and maybe other distros?) has 127.0.1.1 as a loopback address to the node's hostname in /etc/hosts. Removing this line resolved some connection issues my nodes were having. ~Houston King On Thu, Jul 31, 2014 at 3:39 PM, Alexander Pivovarov <apivova...@gmail.com> wrote: > Probably permission issue. > > > On Thu, Jul 31, 2014 at 11:32 AM, Houston King <houston.k...@gmail.com> > wrote: > >> Hey Everyone, >> >> I'm a noob working to setup my first 13 node Hadoop 2.4.0 cluster, and >> I've run into some problems that I'm having a heck of a time debugging. >> >> I've been following the guide posted at >> http://www.implementhadoop.com/install-hadoop-2-4-0-multi-node-cluster/ >> to setup the cluster. I've gotten through the guide, but, when I attempt >> to run either the wordcount, pi, or randomwriter examples most / all my >> tasks end up failing: >> >> 14/07/31 12:23:14 INFO mapreduce.Job: map 0% reduce 0% >> 14/07/31 12:23:28 INFO mapreduce.Job: Task Id : >> attempt_1406829336833_0002_m_000000_0, Status : FAILED >> 14/07/31 12:23:42 INFO mapreduce.Job: Task Id : >> attempt_1406829336833_0002_m_000000_1, Status : FAILED >> 14/07/31 12:23:56 INFO mapreduce.Job: Task Id : >> attempt_1406829336833_0002_m_000000_2, Status : FAILED >> 14/07/31 12:24:12 INFO mapreduce.Job: map 100% reduce 100% >> 14/07/31 12:24:13 INFO mapreduce.Job: Job job_1406829336833_0002 failed >> with state FAILED due to: Task failed task_1406829336833_0002_m_000000 >> >> I've been trying to figure out if I have a configuration problem or where >> in the logfiles the problem is described, but without much luck. At this >> point, I'm looking for any help I can get to get this cluster going. I >> appreciate any and all suggestions! >> >> Thanks >> ~Houston King >> > >