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https://issues.apache.org/jira/browse/HBASE-20483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16467304#comment-16467304
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Anastasia Braginsky commented on HBASE-20483:
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Do you get the same flush performance when working with CCM/CAM/NONE?
> [PERFORMANCE] Flushing is 2x slower in hbase2.
> ----------------------------------------------
>
> Key: HBASE-20483
> URL: https://issues.apache.org/jira/browse/HBASE-20483
> Project: HBase
> Issue Type: Sub-task
> Components: Performance
> Reporter: stack
> Assignee: stack
> Priority: Major
> Attachments: PerpetualFlushingProgram.patch,
> PerpetualFlushingProgram1.2.patch, SnapshotSegmentScanner_2.0.0.patch
>
>
> When flush is slow, memstores backup and go slower. See "1.2.7 vs. 2.0.0
> Flush History"
> https://docs.google.com/spreadsheets/d/1sihTxb4aCplR3Rr_GGXkPlwhMIm-CbB9j_5339AS0Zc/edit#gid=1016758826
> for compare. First noted by [~anoop.hbase]
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