How to set the number of tasks running on each slave?

[Shen LI <ge...@gmail.com>]

How to set the number of tasks running on each slave? (e.g., 4 tasks on each
slave node)

Thanks

Re: How to set the number of tasks running on each slave?

[jingguo yao <ya...@gmail.com>]

mapred.tasktracker.map.tasks.maximum: how many map tasks can be run
concurrently on a map-reduce slave node.

mapred.tasktracker.reduce.tasks.maximum: how many reduce tasks can be run
concurrently on a map-reduce slave node.

mapred.reduce.tasks: how many reduce task for a specific job.

mapred.map.tasks:  how many map task for a specific job. Note that this
configuration is just a lint.


On Tue, Nov 16, 2010 at 11:20 AM, Wei Xue <si...@gmail.com> wrote:

> I depends on how many tasks you created, how many slave nodes in the
> cluster, how many slots allocated in each slave node, and how each node is
> occupied. Each of them has corresponding setting parameters. Please refer to
> hadoop document for more details.
>
> 2010/11/16 Shen LI <ge...@gmail.com>
>
> How to set the number of tasks running on each slave? (e.g., 4 tasks on
>> each slave node)
>>
>> Thanks
>>
>
>


-- 
Jingguo

Re: How to set the number of tasks running on each slave?

[Wei Xue <si...@gmail.com>]

I depends on how many tasks you created, how many slave nodes in the
cluster, how many slots allocated in each slave node, and how each node is
occupied. Each of them has corresponding setting parameters. Please refer to
hadoop document for more details.

2010/11/16 Shen LI <ge...@gmail.com>

> How to set the number of tasks running on each slave? (e.g., 4 tasks on
> each slave node)
>
> Thanks
>