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From Houston King <houston.k...@gmail.com>
Subject Re: Setting Up First Hadoop / Yarn Cluster
Date Fri, 01 Aug 2014 17:49:05 GMT
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 <apivovarov@gmail.com>
wrote:

> Probably permission issue.
>
>
> On Thu, Jul 31, 2014 at 11:32 AM, Houston King <houston.king@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
>>
>
>

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