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https://issues.apache.org/jira/browse/HBASE-20477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16448405#comment-16448405
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stack commented on HBASE-20477:
-------------------------------
Our [~jmspaggi] says this should be on by default which was sort of the idea
originally; IIRC, it was the want-of-testing over time and at scale that
prevented our defaulting it on.
> Document HeapMemoryTuner in refguide
> ------------------------------------
>
> Key: HBASE-20477
> URL: https://issues.apache.org/jira/browse/HBASE-20477
> Project: HBase
> Issue Type: Bug
> Components: documentation
> Reporter: stack
> Priority: Major
> Labels: beginner
>
> This is an old facility that is in danger of disappearing because there is no
> mention in refguide and because it is private interface, it does not show in
> the user API. Add doc on how it works. It could probably do with a bit of
> testing too to make sure it working as advertised.
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