[jira] [Updated] (SPARK-29910) Add minimum runtime limit to speculation

["Dongjoon Hyun (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-29910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun updated SPARK-29910:
----------------------------------
    Affects Version/s:     (was: 3.0.0)
                       3.1.0

> Add minimum runtime limit to speculation
> ----------------------------------------
>
>                 Key: SPARK-29910
>                 URL: https://issues.apache.org/jira/browse/SPARK-29910
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: Deegue
>            Priority: Major
>
> The minimum runtime to speculation used to be a fixed value 100ms.  It means tasks finished in seconds will also be speculated and more executors will be required.
> To resolve this, we add `spark.speculation.minRuntime` to control the minimum runtime limit for speculation.
> We can reduce normal tasks to be speculated by adjusting `spark.speculation.minRuntime`.



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