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From Pedro Costa <psdc1...@gmail.com>
Subject What's speculative tasks
Date Sun, 25 Jul 2010 14:03:34 GMT
Hi,

- In hadoop MR it's used the term speculative tasks. What is speculative
tasks?

- During the execution of a MR test, when we don't have splits to attribute
to reduce tasks, those reduce tasks will run? For example, if I set that
will run 6 reduce tasks and I don't have splits during the running of the
example, the reduce tasks will run? If so, where is verified that a reduce
task has a split assigned?


Thanks,
-- 
Pedro

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