[jira] [Commented] (HBASE-21033) Separate the StoreHeap from StoreFileHeap

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

    [ https://issues.apache.org/jira/browse/HBASE-21033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16632645#comment-16632645 ] 

Andrew Purtell commented on HBASE-21033:
----------------------------------------

What does master / branch-2 changes look like? The same thing, basically? 

> Separate the StoreHeap from StoreFileHeap
> -----------------------------------------
>
>                 Key: HBASE-21033
>                 URL: https://issues.apache.org/jira/browse/HBASE-21033
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>            Priority: Minor
>         Attachments: 21033-branch-1-minimal.txt, 21033-branch-1-v0.txt
>
>
> Currently KeyValueHeap is used for both, heaps of StoreScanners at the Region level as well as heaps of StoreFileScanners (and a MemstoreScanner) at the Store level.
> This is various problems:
>  # Some incorrect method usage can only be deduced at runtime via runtime exception.
>  # In profiling sessions it's hard to distinguish the two.
>  # It's just not clean :)
>  



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