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https://issues.apache.org/jira/browse/SPARK-4028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183908#comment-14183908
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Apache Spark commented on SPARK-4028:
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User 'tdas' has created a pull request for this issue:
https://github.com/apache/spark/pull/2940
> ReceivedBlockHandler interface to abstract the functionality of storage of
> received data
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-4028
> URL: https://issues.apache.org/jira/browse/SPARK-4028
> Project: Spark
> Issue Type: Sub-task
> Components: Streaming
> Reporter: Tathagata Das
> Assignee: Tathagata Das
> Priority: Critical
>
> As part of the initiative to prevent data loss on streaming driver failure,
> this JIRA tracks the subtask of implementing a ReceivedBlockHandler, that
> abstracts the functionality of storage of received data blocks. The default
> implementation will maintain the current behavior of storing the data into
> BlockManager. The optional implementation will store the data to both
> BlockManager as well as a write ahead log.
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