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https://issues.apache.org/jira/browse/HIVE-19598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Koifman updated HIVE-19598:
----------------------------------
    Target Version/s: 3.1.0

> Acid V1 to V2 upgrade
> ---------------------
>
>                 Key: HIVE-19598
>                 URL: https://issues.apache.org/jira/browse/HIVE-19598
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 3.0.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Critical
>
> The on-disk layout for full acid (transactional) tables has changed 3.0.
> Any transactional table that has any update/delete events in any deltas that 
> have not been Major compacted, must go through a Major compaction before 
> upgrading to 3.0.  No more update/delete/merge should be run after/during 
> major compaction.
> Not doing so will result in data corruption/loss.
>  
> Need to create a utility tool to help with this process.  HIVE-19233 started 
> this but it needs more work.



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