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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18720) Replicate Commit Txn operation (without writes)
Date Tue, 03 Apr 2018 16:19:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16424235#comment-16424235
] 

ASF GitHub Bot commented on HIVE-18720:
---------------------------------------

Github user maheshk114 closed the pull request at:

    https://github.com/apache/hive/pull/307


> Replicate Commit Txn operation (without writes)
> -----------------------------------------------
>
>                 Key: HIVE-18720
>                 URL: https://issues.apache.org/jira/browse/HIVE-18720
>             Project: Hive
>          Issue Type: Sub-task
>          Components: repl, Transactions
>    Affects Versions: 3.0.0
>            Reporter: mahesh kumar behera
>            Assignee: mahesh kumar behera
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.0.0
>
>
> Add new EVENT_COMMIT_TXN to log the metadata/data of all tables/partitions modified within
the txn.
> *Source warehouse:*
>  - Create EVENT_COMMIT_TXN event type with corresponding message format etc.
> *Target warehouse:*
>  - Repl load should read this event from the dump.
>  - Validate the source txn ID from the event using the Source-Target Txn ID map maintained
in target metastore. Also, need to check if corresponding target txn ID is valid.
>  - If valid, then apply the event and commit the corresponding target transaction.
>  - This new event should be idempotent such that if it is applied twice, then second
time it should be loop.
>  *{color:#d04437}{color}* 



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