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From: Harsh J <harsh@cloudera.com>
Date: Fri, 10 Apr 2015 10:20:24 +0530
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 <CAOcnVr3DP_z29bjW+_NUhodEiHvKWFE-St+GzgGMeGqg07YyYQ@mail.gmail.com>
Subject: Re: Not able to run more than one map task
To: "<user@hadoop.apache.org>" <user@hadoop.apache.org>
Content-Type: text/plain; charset=UTF-8

You are likely memory/vcore starved in the NM's configs. Increase your
 yarn.nodemanager.resource.memory-mb and
yarn.nodemanager.resource.cpu-vcores configs, or consider lowering the
MR job memory request values to gain more parallelism.

On Thu, Apr 9, 2015 at 5:05 PM, Amit Kumar <amitiitd@msn.com> wrote:
> Hi All,
>
> We recently started working on Hadoop. We have setup the hadoop in pseduo
> distribution mode along with oozie.
>
> Every developer has set it up on his laptop. The problem is that we are not
> able to run more than one map task concurrently on our laptops. Resource
> manager is not allowing more than one task on our machine.
>
> My task gets completed if I submit it without Oozie. Oozie requires one map
> task for its own functioning. Actual task that oozie submit does not start.
>
> Here is my configuration
>
> -- Hadoop setup in Pseudo distribution mode
> -- Hadoop Version - 2.6
> -- Oozie Version - 4.0.1
>
> Regards,
> Amit


-- 
Harsh J