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From Hari Sreekumar <hsreeku...@clickable.com>
Subject Re: Several TT in hadoop MR in clustering?
Date Thu, 30 Dec 2010 11:36:16 GMT
That is how it is.... TT is started on all machines that you mention in the
"slaves" file, when you run start-mapred.sh or start-all.sh. (Apache
v0.20.2).

On Thu, Dec 30, 2010 at 6:58 AM, li ping <li.j2ee@gmail.com> wrote:

> Actually, the TT should run on every datanode.
>
>
> On Thu, Dec 30, 2010 at 7:32 AM, Pedro Costa <psdc1978@gmail.com> wrote:
>
>> Hi,
>>
>> 1 - When Hadoop MR is running in cluster mode, is it possible to have
>> several TT, a TT per machine, running simultaneously and the JT is
>> communicating to every TT?
>> For example, running hadoop MR in 5 machines, each machine (slave
>> node) has a TT communicating with the JT in the master node?
>>
>> Thanks,
>>
>> --
>> Pedro
>>
>
>
>
> --
> -----李平
>

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