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From Min Zhou <coderp...@gmail.com>
Subject Question about disk-aware scheduling in tajo
Date Thu, 13 Feb 2014 02:00:12 GMT
Hi all,

Tajo leverages the feature supported by HDFS-3672, which exposes the disk
volume id of each hdfs data block.  I already found the related code in
DefaultTaskScheduler.assignToLeafTasks,  can anyone explain the logic for
me?  What the scheduler do when the hdfs read is a remote read on the other
machine's disk?

My research interests are distributed systems, parallel computing and
bytecode based virtual machine.

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