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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