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https://issues.apache.org/jira/browse/SPARK-27630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Imran Rashid resolved SPARK-27630.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 24497
[https://github.com/apache/spark/pull/24497]

> Stage retry causes totalRunningTasks calculation to be negative
> ---------------------------------------------------------------
>
>                 Key: SPARK-27630
>                 URL: https://issues.apache.org/jira/browse/SPARK-27630
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.3.0
>            Reporter: dzcxzl
>            Assignee: dzcxzl
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> Track tasks separately for each stage attempt (instead of tracking by stage), 
> and do NOT reset the numRunningTasks to 0 on StageCompleted.
> In the case of stage retry, the {{taskEnd}} event from the zombie stage 
> sometimes makes the number of {{totalRunningTasks}} negative, which will 
> causes the job to get stuck.
>  Similar problem also exists with {{stageIdToTaskIndices}} & 
> {{stageIdToSpeculativeTaskIndices}}.
>  If it is a failed {{taskEnd}} event of the zombie stage, this will cause 
> {{stageIdToTaskIndices}} or {{stageIdToSpeculativeTaskIndices}} to remove the 
> task index of the active stage, and the number of {{totalPendingTasks}} will 
> increase unexpectedly.



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