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Subject: Re: how to execute different tasks on data nodes(simultaneously in
 hadoop).
From: Michael Segel <michael_segel@hotmail.com>
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 <CAAHnRnOo5uzpC5Pes9=mUc_AVtARCLyKeCK6MxpK78oaASfX5A@mail.gmail.com>
Date: Mon, 3 Sep 2012 11:25:43 -0500
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 <CAAHnRnOo5uzpC5Pes9=mUc_AVtARCLyKeCK6MxpK78oaASfX5A@mail.gmail.com>
To: user@hadoop.apache.org

Not sure what you are trying to do...

You want to pass through the entire data set on all nodes where each =
node runs a single filter?=20

You're thinking is orthogonal to how Hadoop works.=20

You would be better off letting each node work on a portion of the data =
which is local to that node running the entire filter set.=20


On Sep 3, 2012, at 11:19 AM, mallik arjun <mallik.cloud@gmail.com> =
wrote:

> genrally in hadoop map function will be exeucted by all the data nodes =
on the input data set ,against this how can i do the following.
> i have some filter programs , and what i want to do is each data =
node(slave) has to execute one filter alogrithm  simultaneously, diffent =
from other data nodes executions.
>=20
> thanks in advance.
>=20
>=20