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From Mark <static.void....@gmail.com>
Subject Question on Master
Date Wed, 16 Mar 2011 16:34:23 GMT
I know the master node is responsible for namenode and job tracker, but 
other than that is there any data stored on that machine? Basically what 
I am asking is should there be an generous amount of free space on that 

So for example I have a large drive I want to swap out of my master and 
put into another machine which will be a used as a node. Before doing 
this, is there anything I should back up from my master? Where is the 
namenode data stored?


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