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Posted to issues@spark.apache.org by "koert kuipers (Jira)" <ji...@apache.org> on 2020/03/26 20:12:00 UTC

[jira] [Commented] (SPARK-30320) Insert overwrite to DataSource table with dynamic partition error when running multiple task attempts

    [ https://issues.apache.org/jira/browse/SPARK-30320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17068005#comment-17068005 ] 

koert kuipers commented on SPARK-30320:
---------------------------------------

i believe we are seeing this issue. it shows up in particular when pre-emption is turned on and we are using dynamic partition overwrite. pre-emption kills tasks, they get restarted, and then they fail again because the output directory already exists (so task throws FileAlreadyExistsException). as a result entire job fails.

so i dont think this is just a speculative execution issue. this is a general issue with dynamic partition overwrite not being able to recover from task failure.

> Insert overwrite to DataSource table with dynamic partition error when running multiple task attempts
> -----------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-30320
>                 URL: https://issues.apache.org/jira/browse/SPARK-30320
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.4, 3.0.0
>            Reporter: Du Ripeng
>            Priority: Major
>
> Inserting overwrite to a DataSource table with dynamic partition might fail when running multiple task attempts. Suppose there are a task attempt and a speculative task attempt, the speculative attempt would raise FileAlreadyExistException



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