[jira] [Commented] (SPARK-10210) Exception "Could not compute split, block input-XXX not found" after streaming app driver recovers from checkpoint

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-10210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14710337#comment-14710337 ] 

Apache Spark commented on SPARK-10210:
--------------------------------------

User 'tdas' has created a pull request for this issue:
https://github.com/apache/spark/pull/8405

> Exception "Could not compute split, block input-XXX not found" after streaming app driver recovers from checkpoint
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-10210
>                 URL: https://issues.apache.org/jira/browse/SPARK-10210
>             Project: Spark
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 1.4.1
>            Reporter: Tathagata Das
>            Assignee: Tathagata Das
>            Priority: Critical
>
> When write ahead log is not enabled, a recovered streaming driver still tries to run jobs using pre-failure block ids, and fails as the block do not exists in-memory any more (and cannot be recovered as receiver WAL is not enabled).
> This occurs because the driver-side WAL of ReceivedBlockTracker is recovers that past block information, and ReceiveInputDStream creates BlockRDDs even if those blocks do not exist.
> The solution is to filter out block ids that do not exist before creating the BlockRDD. 



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