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Posted to dev@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2018/05/17 21:05:00 UTC

[jira] [Created] (HIVE-19598) Acid V1 to V2 upgrade

Eugene Koifman created HIVE-19598:
-------------------------------------

             Summary: 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


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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