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From Arjun Bakshi <baksh...@mail.uc.edu>
Subject Examining effect of changing block placement policy.
Date Mon, 11 Aug 2014 15:39:02 GMT

I've made some changed to the default block placement policy and want to 
see how if affects a cluster. Any suggestions on how I can test the 
before and after of a cluster after making these changes?

I read up a bit on Rumen and GridMix in my search for tools that would 
help me benchmark things on a cluster. As far as I know, I need some job 
traces to get the ball rolling. I've googled for sample job traces but 
didn't find anything. I found this page: 
http://ftp.pdl.cmu.edu/pub/datasets/hla/dataset.html but I'm not sure 
how to use the data there.

I don't have a ton of data, or a bunch of queries I could run on it. My 
best idea till now is to run a bunch of sorts on different input sizes, 
and word counts on different combination of files, all while following 
an exponential inter-job arrival time. I'm planning to do this on AWS's 
EC2's free tire.

Any suggestions on how to observe the effects of changing the policy 
would be appreciated.

Thank you,


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