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From Arun C Murthy <...@hortonworks.com>
Subject Re: Hadoop Jobtracker cluster summary of heap size and OOME
Date Tue, 15 Oct 2013 01:59:58 GMT
Please don't cross-post.

HADOOP_HEAPSIZE of 1024 is too low. You might want to bump it up to 16G or more, depending
on:
* #jobs
* Scheduler you use.

Arun

On Oct 11, 2013, at 9:58 AM, Viswanathan J <jayamviswanathan@gmail.com> wrote:

> Hi,
> 
> I'm running a 14 nodes Hadoop cluster with tasktrackers running in all nodes.
> 
> Have set the jobtracker default memory size in hadoop-env.sh
> 
> HADOOP_HEAPSIZE="1024"
> 
> Have set the mapred.child.java.opts value in mapred-site.xml as,
> 
> <property>
>   <name>mapred.child.java.opts</name>
> <value>-Xmx2048m</value>
> 
> 
> -- 
> Regards,
> Viswa.J

--
Arun C. Murthy
Hortonworks Inc.
http://hortonworks.com/



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