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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16550) Procedure v2 - Add AM compatibility for 2.x Master and 1.x RSs; i.e. support Rolling Upgrade from hbase-1 to -2.
Date Thu, 15 Feb 2018 14:36:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16365628#comment-16365628
] 

stack commented on HBASE-16550:
-------------------------------

Big job mirroring Region State Changes to zk (See Release Note on HBASE-14614). A flag to
enable/disable (same flag could turn off zk mirroring of table state HBASE-16060).

> Procedure v2 - Add AM compatibility for 2.x Master and 1.x RSs; i.e. support Rolling
Upgrade from hbase-1 to -2.
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-16550
>                 URL: https://issues.apache.org/jira/browse/HBASE-16550
>             Project: HBase
>          Issue Type: Sub-task
>          Components: proc-v2, Region Assignment
>    Affects Versions: 2.0.0
>            Reporter: Matteo Bertozzi
>            Priority: Blocker
>
> Core AM HBASE-14614 relies on the RS to be using zkless assignment. Add support for the
old a plain non zkless AM



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