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https://issues.apache.org/jira/browse/SPARK-4873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tathagata Das resolved SPARK-4873.
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Resolution: Fixed
Fix Version/s: 1.2.1
1.3.0
> Use `Future.zip` instead of `Future.flatMap`(for-loop) in
> WriteAheadLogBasedBlockHandler
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-4873
> URL: https://issues.apache.org/jira/browse/SPARK-4873
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Reporter: Shixiong Zhu
> Priority: Minor
> Fix For: 1.3.0, 1.2.1
>
>
> Use Future.zip instead of Future.flatMap(for-loop). zip implies these two
> Futures will run concurrently, while flatMap usually means one Future depends
> on the other one.
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