[jira] [Commented] (HBASE-28600) Enable setting blockcache on-heap sizes in bytes

["Andrew Kyle Purtell (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-28600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17910334#comment-17910334 ] 

Andrew Kyle Purtell commented on HBASE-28600:
---------------------------------------------

[~jinhyukify] This JIRA issue has a 2.5 fix version. Are you planning to also post a PR for branch-2.5 ? It's likely that a 2.6 patch would apply with only minor fuzz to 2.5 but it would be good to have precommit test results for 2.5 available for review also. 
/cc [~ndimiduk]

> Enable setting blockcache on-heap sizes in bytes
> ------------------------------------------------
>
>                 Key: HBASE-28600
>                 URL: https://issues.apache.org/jira/browse/HBASE-28600
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Nick Dimiduk
>            Assignee: JinHyuk Kim
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.0.0-beta-2, 2.5.11, 2.6.3
>
>
> Specifying blockcache and memcache sizes as a percentage of heap is not always ideal. Sometimes it's easier to specify exact values rather than backing into a percentage. Let's introduce new configuration settings (perhaps named similarly to {{hbase.bucketcache.size}}) that accept byte values. Even nicer would be if these settings accepted human-friendly byte values like {{512m}} or {{10g}}. 



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