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https://issues.apache.org/jira/browse/HIVE-21269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sankar Hariappan reassigned HIVE-21269:
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> Hive replication should mandate -update and -delete as DistCp options to
> avoid data inconsistency.
> --------------------------------------------------------------------------------------------------
>
> Key: HIVE-21269
> URL: https://issues.apache.org/jira/browse/HIVE-21269
> Project: Hive
> Issue Type: Bug
> Components: repl
> Affects Versions: 4.0.0
> Reporter: Sankar Hariappan
> Assignee: Sankar Hariappan
> Priority: Major
> Labels: DR, replication
>
> Currently, external tables replication, copies the data in directory level.
> So, if target directory exist, then DistCp should compare and update or skip
> data files in the directory instead of creating new directory inside
> pre-existing target directory.
> This can be achieved using -update.
> Also, -delete option is needed to delete the files missing in source
> directory but present in target.
> Hive should mandate these DistCp options even if user passes other options.
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