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From "Devaraj K (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-13965) TaskSetManager should kill the other running task attempts if any one task attempt succeeds for the same task
Date Mon, 28 Mar 2016 09:26:25 GMT

     [ https://issues.apache.org/jira/browse/SPARK-13965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devaraj K resolved SPARK-13965.
-------------------------------
    Resolution: Duplicate

> TaskSetManager should kill the other running task attempts if any one task attempt succeeds
for the same task
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-13965
>                 URL: https://issues.apache.org/jira/browse/SPARK-13965
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.6.1
>            Reporter: Devaraj K
>
> When we enable speculation, Driver would launch additional attempts for the same task
if it founds that attempt is progressing slow compared to other tasks average progress and
then there will be multiple task attempts in running state.
> At present, if any one attempt gets succeeded others would be keep running (even they
could run till the job completion) and cannot be given these slots to other tasks in same
stage or in next stages. 
> We can kill these running task attempts when any other attempt gets succeeded and can
be given the slots to run other tasks.



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