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From sindhu hosamane <sindh...@gmail.com>
Subject Performance on singlenode and multinode hadoop
Date Mon, 28 Jul 2014 11:00:39 GMT
Hello ,

i set up 2 datanodes on a single machine(ubuntu machine)  accordingly
mentioned in the thread
http://mail-archives.apache.org/mod_mbox/hadoop-common-user/201009.mbox/%3CA3EF3F6AF24E204B812D1D24CCC8D71A03688F76@mse16be2.mse16.exchange.ms%3E

Ubuntu machine has 2 processors and 8 cores. Assuming that machine is
powerful , i Setup 2 datanodes on that same machine.

Now when i run jps on that multinode hadoop , i get
Namenode
Datanode
Datanode
Jobtracker
Tasktracker
Secondary Namenode

The above result Shows 2 datanodes are up and running

Also i have a single node on that ubuntu machine as well.
Now when i check Performance on singlenode and multinode , both are almost
same.So now ,
How do i make sure load is being distributed on both datanodes or each
datanode uses different cores of the ubuntu machine.

(Note: i know multiple datanodes on same machine is not that advantageous ,
but assuming my machine is powerful ..i set it up..)

would appreciate any advices on this.

Regards,
Sindhu

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