Suresh! Rumen is used to generate a trace file from the job history files on a pre-existing cluster. This trace file can then be fed into gridmix (for example) to "simulate" the same workload on that cluster again (or another cluster for that matter). https://hadoop.apache.org/docs/stable/rumen.html. Rumen also allows you to specify a scaling factor, so if you were able to get a trace for a much bigger cluster, you could scale it down to run on a much smaller cluster.
I'm afraid I'm not familiar with Mumak. You might also be interested in this JIRA: https://issues.apache.org/jira/browse/YARN-1021 . Unfortunately, it hasn't been checked into the repository yet, so you will have to apply the patch yourself. HTH Ravi ________________________________ From: Suresh S <suresh...@gmail.com> To: mapreduce-dev@hadoop.apache.org Sent: Tuesday, September 17, 2013 12:48 AM Subject: Doubt regarding hadoop simulator Hello, I am searching for MapReduce simulator in online. I heared some names like *Rumen and Mumak.* ** But unable to understand thease simulator. I have modified some changes on Fair scheduling. i want to run the simulation for same workload for original Fair scheduler and modified fair scheduler. And see the difference in the response time, fairness, locality and network traffic. I dont have real enviornment to run my experiments. Please help me in this regard. Is is possible with rumen and mumak? Is there any other simulater available? Thanks in Advance... *Regards* *S.Suresh,* *Research Scholar,* *Department of Computer Applications,* *National Institute of Technology,* *Tiruchirappalli - 620015.* *+91-9941506562*
