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Posted to dev@hbase.apache.org by "Amit Patel (JIRA)" <ji...@apache.org> on 2017/08/25 19:44:01 UTC

[jira] [Created] (HBASE-18686) Improve HLC implementation performance

Amit Patel created HBASE-18686:
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             Summary: Improve HLC implementation performance
                 Key: HBASE-18686
                 URL: https://issues.apache.org/jira/browse/HBASE-18686
             Project: HBase
          Issue Type: Sub-task
            Reporter: Amit Patel
            Priority: Blocker


Based on [performance benchmarks on the clocks|https://issues.apache.org/jira/browse/HBASE-18542?focusedCommentId=16141932&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16141932], the Clock#now and Clock#update methods of the HLC implementation are costly in multithreaded scenarios especially due to synchronization around the entire methods.



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