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From Nan Zhu <zhunans...@gmail.com>
Subject dynamically resizing the Hadoop cluster?
Date Thu, 24 Oct 2013 03:35:18 GMT
Hi, all

I’m running a Hadoop cluster on AWS EC2,  

I would like to dynamically resizing the cluster so as to reduce the cost, is there any solution
to achieve this?  

E.g. I would like to cut the cluster size with a half, is it safe to just shutdown the instances
(if some tasks are just running on them, can I rely on the speculative execution to re-run
them on the other nodes?)

I cannot use EMR, since I’m running a customized version of Hadoop  

Best,

--  
Nan Zhu
School of Computer Science,
McGill University



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