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https://issues.apache.org/jira/browse/HBASE-20913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553391#comment-16553391
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huaxiang sun commented on HBASE-20913:
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That is great idea [~stack] as you recently run into some netty related DM
issues. I will try to include netty DM usage as well. DM picture is pretty much
complete with netty DM usage + mslab DM usage + bucket cache DM usage + some
nio DM usage (normally it will be small).
> List memstore direct memory/heap memory usage
> ---------------------------------------------
>
> Key: HBASE-20913
> URL: https://issues.apache.org/jira/browse/HBASE-20913
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Affects Versions: 2.0.0
> Reporter: huaxiang sun
> Assignee: huaxiang sun
> Priority: Minor
> Attachments: Screen Shot 2018-07-13 at 4.44.07 PM.png
>
>
> With offheap write path support, mslab can be allocated at offheap memory.
> Currently, RS Server Metrics, only show Memstore Size and it does not list
> the DM usage for memstore. It will be good that memstore's offheap memory
> usage along with the heap memory usage be shown at the webpage so we will
> know how much DM is used for memstore.
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