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https://issues.apache.org/jira/browse/MAPREDUCE-7278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wilfred Spiegelenburg resolved MAPREDUCE-7278.
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Resolution: Fixed
Pulled this back to branch-3.1 for 3.1.5
closing, thank you [~tarunparimi] for your contribution
> Speculative execution behavior is observed even when
> mapreduce.map.speculative and mapreduce.reduce.speculative are false
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-7278
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7278
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: task
> Affects Versions: 2.8.0, 3.4.0
> Reporter: Tarun Parimi
> Assignee: Tarun Parimi
> Priority: Major
> Fix For: 3.3.0, 3.2.2, 3.4.0, 3.1.5
>
> Attachments: MAPREDUCE-7278.001.patch, MAPREDUCE-7278.002.patch,
> MAPREDUCE-7278.003.patch, MAPREDUCE-7278.004.patch, Screen Shot 2020-04-30 at
> 8.04.27 PM.png
>
>
> When a failed task attempt container is stuck in FAIL_FINISHING_CONTAINER
> state for some time, we observe two task attempts are launched simultaneously
> even when speculative execution is disabled.
> This results in the below message shown in the killed attempts, indicating
> speculation has occurred. This is an issue for jobs which require speculative
> execution to be strictly disabled.
> !Screen Shot 2020-04-30 at 8.04.27 PM.png!
>
>
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