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MapReduce >> mail # user >> Passing messages

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Re: Passing messages

On Dec 19, 2010, at 10:21 AM, Eric wrote:

> I don't know if there is such a thing in Hadoop, I'm guessing not since MapReduce is designed to have independent mappers and reducers.


> I'm just suggesting something here: you could write a small server yourself. Say you start your jobs from a work node that has only light load. On that node, you also create something that works like memcache. (maybe you can even use memcache?)

Or just use ZooKeeper.