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https://issues.apache.org/jira/browse/SPARK-2582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell resolved SPARK-2582.
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Resolution: Won't Fix
I closed this PR a long time ago - but didn't close the asscicated JIRA.
> Make Block Manager Master pluggable
> -----------------------------------
>
> Key: SPARK-2582
> URL: https://issues.apache.org/jira/browse/SPARK-2582
> Project: Spark
> Issue Type: Improvement
> Components: Block Manager
> Affects Versions: 1.0.0
> Reporter: Hari Shreedharan
>
> Today, there is no way to make the BMM pluggable. So if we want an HA BMM,
> that needs to replace the current one. Making this pluggable and selected
> based on a config makes it easy to select HA or non-HA one based on the
> application's preference. Streaming applications would be better off with an
> HA one, while a normal application would not care (since the RDDs can be
> regenerated).
> Since communication from the Block Managers to the BMM is via akka, we can
> keep that the same and just have the implementation of the BMM implement the
> actual methods which do the real work - this would not affect the Block
> Managers too.
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