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From jiang licht <licht_ji...@yahoo.com>
Subject hybrid map/reducer scheduler?
Date Mon, 28 Jun 2010 22:43:28 GMT
In addition to default FIFO scheduler, there are fair scheduler and capacity scheduler. In
some sense, fair scheduler can be considered a user-based scheduling while capacity scheduler
does a queue-based scheduling. Is there or will there be a hybrid scheduler that combines
the good parts of the two (or a capacity scheduler that allows preemption, then different
users are asked to submit jobs to different queues, in this way implicitly follow user-based
scheduling as well, more or less)?

Thanks,

--Michael


      
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