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https://issues.apache.org/jira/browse/HBASE-11206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14003551#comment-14003551
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Anoop Sam John commented on HBASE-11206:
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bq.I think by definition it cannot support a mixed deployment (ie, on-heap
memstore, off-heap blockcache)
Ya the initial impl was made simple. We can think of supporting the mixed mode
(ie, on-heap memstore, off-heap blockcache).
> Enable automagically tweaking memstore and blockcache sizes
> -----------------------------------------------------------
>
> Key: HBASE-11206
> URL: https://issues.apache.org/jira/browse/HBASE-11206
> Project: HBase
> Issue Type: Task
> Reporter: stack
> Assignee: stack
> Fix For: 0.99.0
>
>
> HBASE-5349
> "Automagically tweak global memstore and block cache sizes based on workload"
> adds a nice new feature. It is off by default. Lets turn it on for 0.99.
> Liang Xie is concerned that automatically shifting blockcache and memstore
> sizes could wreck havoc w/ GC'ing in low-latency serving situation -- a valid
> concern -- but lets enable this feature in 0.99 and see how it does. Can
> always disable it before 1.0 if a problem.
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