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From Srinivas Chamarthi <srinivas.chamar...@gmail.com>
Subject Re: Map Reduce Job fails
Date Fri, 11 Oct 2013 10:28:21 GMT
from the stack trace, I believe, it is trying to start/connect the
ApplicationMaster and fails to connect to it. I am not sure if this is
related to ec2 loopback adapter.


On Fri, Oct 11, 2013 at 12:22 AM, Srinivas Chamarthi <
srinivas.chamarthi@gmail.com> wrote:

> I have a 2 node cluster (HDP1, HDP2) as mentioned below.
>
> HDP 1
>
> 1.name node ,
> 2.data node,
> 3. node manager
> 4. resource manager
>
> HDP 2
>
> 1. node manager
> 2. data node
>
> when I submit the map reduce job on HDP1 , the job runs on node HDP2 which
> is fine.
> But the job fails and in the userlogs/syslogs of the application on HDP2 I
> am finding an exception
>
>
> 2013-10-11 03:10:35,700 INFO [AsyncDispatcher event handler]
> org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: Diagnostics
> report from attempt_1381261418535_0021_m_000000_0: Container launch failed
> for container_1381261418535_0021_01_000003 : java.net.ConnectException:
> Call From 249/172.xy.ab.249 to ip-172-xy-ab-249.localdomain:37785 failed on
> connection exception: java.net.ConnectException: Connection refused; For
> more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
>
>
> looks like it is trying to connect to same server but for some reason it
> cannot find something it is looking for on that port.
>
>
> any idea what I am missing ?
>
> 1. one may be I am missing to run some process on HDP2
> 2. or not providing the right configuration to find a server on HDP1.
>
> any help is greatly appreciated
>
> thx
> srinivas
>
>

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