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From "Krisztian Kasa (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21948) Implement parallell processing in Pre Upgrade Tool
Date Mon, 08 Jul 2019 07:10:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Krisztian Kasa updated HIVE-21948:
----------------------------------
    Status: Patch Available  (was: Open)

> Implement parallell processing in Pre Upgrade Tool
> --------------------------------------------------
>
>                 Key: HIVE-21948
>                 URL: https://issues.apache.org/jira/browse/HIVE-21948
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>    Affects Versions: 3.1.0
>            Reporter: Krisztian Kasa
>            Assignee: Krisztian Kasa
>            Priority: Major
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21948.1.patch
>
>
> Pre Upgrade Tool scans for all databases and tables in the warehouse sequentially which
can be very slow in case of lots of tables.
> Example: It took the process 8-10 hours to complete on ~500k tables.



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