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From Sindhu Hosamane <sindh...@gmail.com>
Subject Multiple datanodes on single machine !!
Date Mon, 11 Aug 2014 05:46:45 GMT
Hello,

I have set up multiple datanodes on a single machine following the instructions in http://mail-archives.apache.org/mod_mbox/hadoop-common-user/201009.mbox/%3CA3EF3F6AF24E204B812D1D24CCC8D71A03688F76@mse16be2.mse16.exchange.ms%3E
So i see 2 datanodes up and running when i run jps command.
The machine on which i set this 2 datanode hadoop is very powerful - means it has 96 cores
.
But still i dont get significant performance from 2 datanodes .  How do i make sure 2 datanodes
are being used.
Or why does performance fail with 2 datanodes on same machine even when i work on a powerful
machine?

Because before tweaking hadoop with those mapped properties  to improve performance, i want
know if i get any performance from 2 datanodes(since i am working on a powerful server)

Any of your advices would be helpful. 


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