[jira] [Commented] (HIVE-26758) Allow use scratchdir for staging final job

["Yi Zhang (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-26758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17641680#comment-17641680 ] 

Yi Zhang commented on HIVE-26758:
---------------------------------

[~pvary] can you help review this?

> Allow use scratchdir for staging final job
> ------------------------------------------
>
>                 Key: HIVE-26758
>                 URL: https://issues.apache.org/jira/browse/HIVE-26758
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Planning
>    Affects Versions: 4.0.0-alpha-2
>            Reporter: Yi Zhang
>            Assignee: Yi Zhang
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> The query results are staged in stagingdir that is relative to the destination path <destination_dir>/<staging_dir>/
> during blobstorage optimzation HIVE-17620 final job is set to use stagingdir.
> HIVE-15215 mentioned the possibility of using scratch for staging when write to S3 but it was long time ago and no activity.
>  
> This is to allow final job to use hive.exec.scratchdir as the interim jobs, with a configuration 
> hive.use.scratchdir.for.staging
> This is useful for cross Filesystem, user can use local source filesystem instead of remote filesystem for the staging.



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