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Posted to common-user@hadoop.apache.org by Saptarshi Guha <sa...@gmail.com> on 2010/03/03 04:46:09 UTC

Cluster Summary, Heap Size

Hello,
I often notice "Cluster Summary (Heap Size is 281/889)" where the 281
is much when I start up Hadoop.
How does this relate to Hadoop Mapreduce?

Thank you
Saptarshi

Re: Cluster Summary, Heap Size

Posted by Saptarshi Guha <sa...@gmail.com>.

Oh, I presume this is the value of HADOOP_HEAPSIZE specified in the
hadoop-env.sh and is the heap given to the deamon by Java.
I guess this answers the question.

On Tue, Mar 2, 2010 at 10:46 PM, Saptarshi Guha
<sa...@gmail.com> wrote:
> Hello,
> I often notice "Cluster Summary (Heap Size is 281/889)" where the 281
> is much when I start up Hadoop.
> How does this relate to Hadoop Mapreduce?
>
> Thank you
> Saptarshi
>