Tsz Wo (Nicholas), SZE created HDFS-5470:
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Summary: Add back trunk's reportDiff algorithm to HDFS-2832
Key: HDFS-5470
URL: https://issues.apache.org/jira/browse/HDFS-5470
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
As reminded by [~shv] in HDFS-5464, the report diff algorithm uses less memory.
It also has a faster running time. We should add it back to the branch.
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