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From "Sushanth Sowmyan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-16642) New Events created as part of replv2 potentially break replv1
Date Tue, 16 May 2017 23:20:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sushanth Sowmyan updated HIVE-16642:
------------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

Committed to master, per Thejas' +1 pending tests, since none of the failing tests are related.

Thanks for the review, [~thejas] & [~anishek]!

> New Events created as part of replv2 potentially break replv1
> -------------------------------------------------------------
>
>                 Key: HIVE-16642
>                 URL: https://issues.apache.org/jira/browse/HIVE-16642
>             Project: Hive
>          Issue Type: Sub-task
>          Components: repl
>            Reporter: Sushanth Sowmyan
>            Assignee: Sushanth Sowmyan
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16642.1.patch, HIVE-16642.2.patch, HIVE-16642.3.patch
>
>
> We have a couple of new events introduced, such as \{CREATE,DROP\}\{INDEX,FUNCTION\}
since the introduction of replv1, but those which do not have a replv1 ReplicationTask associated
with them.
> Thus, for users like Falcon, we potentially wind up throwing a IllegalStateException
if replv1 based HiveDR is running on a cluster with these updated events.
> Thus, we should be more graceful when encountering them, returning a NoopReplicationTask
equivalent that they can make use of, or ignore, for such newer events.
> In addition, we should add additional test cases so that we track whether or not the
creation of these events leads to any backward incompatibility we introduce. To this end,
if any of the events should change so that we introduce a backward incompatibility, we should
have these tests fail, and alert us to that possibility.



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