Hi bigtop:  

Are there any filesystem stress tests? I.e 
-running 100 small mapreduce jobs 

-recursively deleting and recreating a directory multiple times from different 
clients, concurrently.

-attempting to streaming  io into the same file concurrently from different 
tasks

I don't believe so - as most smokes/ are mapreduce oriented which is very 
structured.

Proposal: a stress/ submodule under test-artifacts which does some of these 
iterative metadata intensive operations in filesystem agnostic way.

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