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https://issues.apache.org/jira/browse/SPARK-10985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Or resolved SPARK-10985.
-------------------------------
          Resolution: Fixed
            Assignee: Josh Rosen
       Fix Version/s: 2.0.0
    Target Version/s: 2.0.0

> Avoid passing evicted blocks throughout BlockManager / CacheManager
> -------------------------------------------------------------------
>
>                 Key: SPARK-10985
>                 URL: https://issues.apache.org/jira/browse/SPARK-10985
>             Project: Spark
>          Issue Type: Improvement
>          Components: Block Manager, Spark Core
>            Reporter: Andrew Or
>            Assignee: Josh Rosen
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> This is a minor refactoring task.
> Currently when we attempt to put a block in, we get back an array buffer of 
> blocks that are dropped in the process. We do this to propagate these blocks 
> back to our TaskContext, which will add them to its TaskMetrics so we can see 
> them in the SparkUI storage tab properly.
> Now that we have TaskContext.get, we can just use that to propagate this 
> information. This simplifies a lot of the signatures and gets rid of weird 
> return types like the following everywhere:
> {code}
> ArrayBuffer[(BlockId, BlockStatus)]
> {code}



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