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https://issues.apache.org/jira/browse/HIVE-16898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated HIVE-16898:
------------------------------
Attachment: HIVE-16898.1.patch
Attach patch. Cannot find a way to write a unit test. Manually test it with
debugger: setup a breakpoint right before copy, and drop table in another
session.
> Validation of source file after distcp in repl load
> ----------------------------------------------------
>
> Key: HIVE-16898
> URL: https://issues.apache.org/jira/browse/HIVE-16898
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 3.0.0
> Reporter: anishek
> Assignee: Daniel Dai
> Fix For: 3.0.0
>
> Attachments: HIVE-16898.1.patch
>
>
> time between deciding the source and destination path for distcp to invoking
> of distcp can have a change of the source file, hence distcp might copy the
> wrong file to destination, hence we should an additional check on the
> checksum of the source file path after distcp finishes to make sure the path
> didnot change during the copy process. if it has take additional steps to
> delete the previous file on destination and copy the new source and repeat
> the same process as above till we copy the correct file.
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