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https://issues.apache.org/jira/browse/PHOENIX-3174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15514729#comment-15514729
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James Taylor commented on PHOENIX-3174:
---------------------------------------

bq. FWIW, this is a 4.9 feature. So you won't running into this exception on 
4.8.1.
Ah, yes - I forgot. Was thinking this was a blocker for 4.8.1 RC, but it's not. 
Never mind about using 4.7 against 4.8.1.

> Make minor upgrade a manual step
> --------------------------------
>
>                 Key: PHOENIX-3174
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3174
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: Samarth Jain
>             Fix For: 4.9.0
>
>         Attachments: PHOENIX-3174.patch, PHOENIX-3174_v2.patch, 
> PHOENIX-3174_v3_master.patch, PHOENIX-3174_v4_master.patch, 
> PHOENIX-3174_v5_master.patch
>
>
> Instead of automatically performing minor release upgrades to system tables 
> in an automated manner (on first connection), we should make upgrade a 
> separate manual step. If a newer client attempts to connect to a newer server 
> without the upgrade step having occurred, we'd fail the connection.
> Though not as automated, this would give users more control and visibility 
> into when an upgrade over system tables occurs.



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