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Date: Fri, 1 Aug 2014 11:49:05 -0600
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 <CAKYh-oPw94O+BjOzceu4-GWLB3GSK1zR9VRraJUNT3PE-v7cfA@mail.gmail.com>
Subject: Re: Setting Up First Hadoop / Yarn Cluster
From: Houston King <houston.king@gmail.com>
To: user@hadoop.apache.org
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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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<div dir=3D"ltr"><div>I found what was causing trouble (which it looks like=
 others have seen as well):=C2=A0</div><div><br></div><div>Ubuntu (and mayb=
e other distros?) has 127.0.1.1 as a loopback address to the node&#39;s hos=
tname in /etc/hosts. =C2=A0Removing this line resolved some connection issu=
es my nodes were having.</div>
<div><br></div></div><div class=3D"gmail_extra"><br clear=3D"all"><div>~Hou=
ston King</div>
<br><br><div class=3D"gmail_quote">On Thu, Jul 31, 2014 at 3:39 PM, Alexand=
er Pivovarov <span dir=3D"ltr">&lt;<a href=3D"mailto:apivovarov@gmail.com" =
target=3D"_blank">apivovarov@gmail.com</a>&gt;</span> wrote:<br><blockquote=
 class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc soli=
d;padding-left:1ex">
<div dir=3D"ltr">Probably permission issue.</div><div class=3D"HOEnZb"><div=
 class=3D"h5"><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote"=
>On Thu, Jul 31, 2014 at 11:32 AM, Houston King <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:houston.king@gmail.com" target=3D"_blank">houston.king@gmail.c=
om</a>&gt;</span> wrote:<br>


<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr">Hey Everyone,<div><br></div=
><div>I&#39;m a noob working to setup my first 13 node Hadoop 2.4.0 cluster=
, and I&#39;ve run into some problems that I&#39;m having a heck of a time =
debugging. =C2=A0</div>


<div><br></div>
<div>I&#39;ve been following the guide posted at=C2=A0<a href=3D"http://www=
.implementhadoop.com/install-hadoop-2-4-0-multi-node-cluster/" target=3D"_b=
lank">http://www.implementhadoop.com/install-hadoop-2-4-0-multi-node-cluste=
r/</a> to setup the cluster. =C2=A0I&#39;ve gotten through the guide, but, =
when I attempt to run either the wordcount, pi, or randomwriter examples mo=
st / all my tasks end up failing:</div>


<div><br></div><div><div>14/07/31 12:23:14 INFO mapreduce.Job: =C2=A0map 0%=
 reduce 0%</div><div>14/07/31 12:23:28 INFO mapreduce.Job: Task Id : attemp=
t_1406829336833_0002_m_000000_0, Status : FAILED</div><div>14/07/31 12:23:4=
2 INFO mapreduce.Job: Task Id : attempt_1406829336833_0002_m_000000_1, Stat=
us : FAILED</div>


<div>14/07/31 12:23:56 INFO mapreduce.Job: Task Id : attempt_1406829336833_=
0002_m_000000_2, Status : FAILED</div><div>14/07/31 12:24:12 INFO mapreduce=
.Job: =C2=A0map 100% reduce 100%</div><div>14/07/31 12:24:13 INFO mapreduce=
.Job: Job job_1406829336833_0002 failed with state FAILED due to: Task fail=
ed task_1406829336833_0002_m_000000</div>


<div><br></div><div>I&#39;ve been trying to figure out if I have a configur=
ation problem or where in the logfiles the problem is described, but withou=
t much luck. =C2=A0At this point, I&#39;m looking for any help I can get to=
 get this cluster going. =C2=A0I appreciate any and all suggestions!</div>


<div><br></div><div>Thanks</div><span><font color=3D"#888888"><div>~Houston=
 King</div>
</font></span></div></div>
</blockquote></div><br></div>
</div></div></blockquote></div><br></div>

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