[jira] Created: (MAPREDUCE-1261) Enhance mumak to implement a 'stress-test' for the JobTracker

["Arun C Murthy (JIRA)" <ji...@apache.org>]

Enhance mumak to implement a 'stress-test' for the JobTracker
-------------------------------------------------------------

                 Key: MAPREDUCE-1261
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1261
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: contrib/mumak
            Reporter: Arun C Murthy


I propose we enhance mumak to implement a proper 'stress-test' tool for the JobTracker. The idea is that we enhance mumak to have a mode where it can use the *real* JobTracker (and Scheduler of course) and mumak's SimulatedTaskTracker to run real workloads from production job-history traces. Clearly we will need to make necessary changes to allow the SimulatedTaskTrackers to run independently (a thread per SimulatedTT) in a distributed manner.

We can then simulate very large clusters and workloads using a handful of machines (say ~50 machines to simulate workload which originally ran on a 4000 node cluster), also we can use this to stress the JobTracker with synthetic workloads.

Thoughts?

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.