make bwlimit None if it is not set to a value. Previously, an empty value
authorStephen Soltesz <soltesz@cs.princeton.edu>
Thu, 6 Aug 2009 15:44:59 +0000 (15:44 +0000)
committerStephen Soltesz <soltesz@cs.princeton.edu>
Thu, 6 Aug 2009 15:44:59 +0000 (15:44 +0000)
would translate into zero.  This caused NM to enforce a zero bwlimit on the
node, which caused node to act very very slowly.


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