Parallel Block Copy for DiskBalancer #255
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liumihust
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Oct 15, 2019
Author: Boris Shkolnik <boryas@apache.org> Author: Boris Shkolnik <bshkolni@linkedin.com> Reviewers: Xinyu Liu <xinyu@apache.org> Closes apache#255 from sborya/ZkCommunicationVersion
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We're closing this stale PR because it has been open for 100 days with no activity. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable. |
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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