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Guanghao Zhang resolved HBASE-25281. ------------------------------------ Fix Version/s: 2.4.0 3.0.0-alpha-1 Resolution: Fixed Pushed to branch-2 and master. Thanks [~niuyulin] for contributing. > Bulkload split hfile too many times due to unreasonable split point > ------------------------------------------------------------------- > > Key: HBASE-25281 > URL: https://issues.apache.org/jira/browse/HBASE-25281 > Project: HBase > Issue Type: Improvement > Components: tooling > Reporter: niuyulin > Assignee: niuyulin > Priority: Minor > Fix For: 3.0.0-alpha-1, 2.4.0 > > Attachments: bulkload.png > > > [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688] > if hfile span multi regions, for example A,B,C,D,E,F(the start key of these > regions are in ascending order), we should use region C endkey to split, not > region A. In this way, we can get equal .top and .bottom hfiles, reduce time > complexity of split from O( n ) to O(logn),decrease invoke of {{bulkLoad}} > rpc to regionserver ,and also avoid write amplification during > {{copyHFileHalf}} -- This message was sent by Atlassian Jira (v8.3.4#803005)