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https://issues.apache.org/jira/browse/SPARK-2717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Rosen resolved SPARK-2717.
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Resolution: Won't Fix
This is subsumed by the patch that adds timeouts to BasicBlockFetchIterator.
> BasicBlockFetchIterator#next should log when it gets stuck
> ----------------------------------------------------------
>
> Key: SPARK-2717
> URL: https://issues.apache.org/jira/browse/SPARK-2717
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Patrick Wendell
> Assignee: Josh Rosen
> Priority: Critical
>
> If this is stuck for a long time waiting for blocks, we should log what nodes
> it is waiting for to help debugging. One way to do this is to call take()
> with a timeout (e.g. 60 seconds) and when the timeout expires log a message
> for the blocks it is still waiting for. This could all happen in a loop so
> that the wait just restarts after the message is logged.
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