Parallel Block Copy for DiskBalancer #255
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liumihust
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Oct 15, 2019
Author: Boris Shkolnik <[email protected]> Author: Boris Shkolnik <[email protected]> Reviewers: Xinyu Liu <[email protected]> Closes apache#255 from sborya/ZkCommunicationVersion
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The default plan executing is in sequential order,which means each step is executed one by one, because one volume can't be changed by two or more step at the same time.
“Anything worth doing is, sooner or later, worth doing concurrently”
However, We find a way to execute the plan in parallel,which is not only much more efficient but also safe.The detail is here:
https://github.com/liumihust/Parallel-Block-Copy-HDFS