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Mikhail Antonov commented on HBASE-16213: ----------------------------------------- [~carp84] this is a nice work for sure, I just think it's a bit too late for new features like this one to go to 1.3. Let's keep it in 1.4 (branch-1) for now, then depending on more prod testing and numbers on how much we can win we can cherry-pick for 1.3.1.. > A new HFileBlock structure for fast random get > ---------------------------------------------- > > Key: HBASE-16213 > URL: https://issues.apache.org/jira/browse/HBASE-16213 > Project: HBase > Issue Type: New Feature > Components: Performance > Reporter: binlijin > Assignee: binlijin > Fix For: 2.0.0, 1.4.0 > > Attachments: HBASE-16213-master_v1.patch, > HBASE-16213-master_v3.patch, HBASE-16213-master_v4.patch, > HBASE-16213-master_v5.patch, HBASE-16213-master_v6.patch, > HBASE-16213.branch-1.v1.patch, HBASE-16213.branch-1.v4.patch, > HBASE-16213.branch-1.v4.patch, HBASE-16213.patch, > HBASE-16213_branch1_v3.patch, HBASE-16213_v2.patch, hfile-cpu.png, > hfile_block_performance.pptx, hfile_block_performance2.pptx, > hfile_block_performance_E2E.pptx > > > HFileBlock store cells sequential, current when to get a row from the block, > it scan from the first cell until the row's cell. > The new structure store every row's start offset with data, so it can find > the exact row with binarySearch. > I use EncodedSeekPerformanceTest test the performance. > First use ycsb write 100w data, every row have only one qualifier, and > valueLength=16B/64/256B/1k. > Then use EncodedSeekPerformanceTest to test random read 1w or 100w row, and > also record HFileBlock's dataSize/dataWithMetaSize in the encoding. -- This message was sent by Atlassian JIRA (v6.3.4#6332)