[jira] [Commented] (SPARK-19596) After a Stage is completed, all Tasksets for the stage should be marked as zombie

["Imran Rashid (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-19596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15865971#comment-15865971 ] 

Imran Rashid commented on SPARK-19596:
--------------------------------------

cc [~kayousterhout] [~jinxing6042@126.com] [~markhamstra]

> After a Stage is completed, all Tasksets for the stage should be marked as zombie
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-19596
>                 URL: https://issues.apache.org/jira/browse/SPARK-19596
>             Project: Spark
>          Issue Type: Improvement
>          Components: Scheduler
>    Affects Versions: 2.2.0
>            Reporter: Imran Rashid
>
> Fetch Failures can lead to multiple simultaneous tasksets for one stage.  The stage may eventually be finished by task completions from a prior stage attempt.  When this happens, the most recent taskset is not marked as a zombie.  This means that taskset may continue to submit new tasks even after the stage is complete.
> This is not a correctness issue, but it will effect performance, as cluster resources will get tied up running tasks that are not needed.
> This is a follow up to https://issues.apache.org/jira/browse/SPARK-19565.  See some discussion in the pr for that issue: https://github.com/apache/spark/pull/16901



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