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HDFS >> mail # dev >> Rack-awareness in Hadoop-2.0.3-alpha

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Rack-awareness in Hadoop-2.0.3-alpha
Is Hadoop-2.0.3-alpha does not support Rack-awarness?
I am trying to make Hadoop cluster Rack-Aware for a week but I
haven't succeed.

What I am doing.
I am adding following property in etc/hadoop/core-site.xml :
The topology.sh and topology.data is attached with this mail.

I want to tell you that once I used this property(topology.script.file.name)
and files to make Hadoop-0.22.0 rack-aware but I am unable to do the same
for Hadoop-2.0.3-alpha.
What I am doing wrong?
Please, somebody help me.
*With regards ---*
*Mohammad Mustaqeem*,
M.Tech (CSE)
MNNIT Allahabad