[jira] [Created] (HBASE-18305) Initial patch (Core HLC) for public branch

["Amit Patel (JIRA)" <ji...@apache.org>]

Amit Patel created HBASE-18305:
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             Summary: Initial patch (Core HLC) for public branch
                 Key: HBASE-18305
                 URL: https://issues.apache.org/jira/browse/HBASE-18305
             Project: HBase
          Issue Type: Sub-task
            Reporter: Amit Patel
            Assignee: Amit Patel


Used for tracking the status of the initial patch for HLC. Core HLC refers to the addition of the HLC framework (i.e., Clock, Timestamp API), integration of said framework with the codebase, and changes to tests. Practically all of this work has been done by our [~saitejar]. 

This patch in particular intentionally does not include:
* undoing using the master's timestamp for meta updates,
* enabling HLC for meta
* updating the clock for events like recovery, replication, region open/close. 

These changes will be introduced soon in smaller followup commits.



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