[jira] [Work stopped] (HIVE-19739) Bootstrap REPL LOAD to use checkpoints to validate and skip the loaded data/metadata.

["Sankar Hariappan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-19739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HIVE-19739 stopped by Sankar Hariappan.
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> Bootstrap REPL LOAD to use checkpoints to validate and skip the loaded data/metadata.
> -------------------------------------------------------------------------------------
>
>                 Key: HIVE-19739
>                 URL: https://issues.apache.org/jira/browse/HIVE-19739
>             Project: Hive
>          Issue Type: Sub-task
>          Components: HiveServer2, repl
>    Affects Versions: 3.0.0
>            Reporter: Sankar Hariappan
>            Assignee: Sankar Hariappan
>            Priority: Major
>              Labels: DR, pull-request-available, replication
>             Fix For: 4.0.0
>
>
> Currently. bootstrap REPL LOAD have added checkpoint identifiers in DB/table/partition object properties once the data/metadata related to the object is successfully loaded.
> If the Db exist and is not empty, then currently we are throwing exception. But need to support it for the retry scenario after a failure.
> If there is a retry of bootstrap load using the same dump, then instead of throwing error, we should check if any of the tables/partitions are completely loaded using the checkpoint identifiers. If yes, then skip it or else drop/create them again.
> If the bootstrap load is performed using different dump, then it should throw exception.



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