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https://issues.apache.org/jira/browse/HBASE-13170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Elliott Clark updated HBASE-13170:
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    Attachment: HBASE-13170-v2.patch

Code clean up.

> Allow block cache to be external
> --------------------------------
>
>                 Key: HBASE-13170
>                 URL: https://issues.apache.org/jira/browse/HBASE-13170
>             Project: HBase
>          Issue Type: New Feature
>          Components: io
>    Affects Versions: 2.0.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 1.1.0
>
>         Attachments: HBASE-13170-v1.patch, HBASE-13170-v2.patch, 
> HBASE-13170.patch
>
>
> Allow an external service to provide the block cache. This has the nice 
> property of allowing failover/upgrades to happen without causing a fully cold 
> cache.
> Additionally this allows read replicas to share some of the same memory.



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