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https://issues.apache.org/jira/browse/PHOENIX-2862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281250#comment-15281250
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Ankit Singhal commented on PHOENIX-2862:
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Thanks [~jamestaylor], my bad if I was not clear with my first comment. but
actually I was asking you to review pull request if [~samarthjain] is not
around. But anyways, can you or [~samarthjain] please review the pull request.
https://github.com/apache/phoenix/pull/167
Pull request also includes other changes or fixes related to schema support and
other tools which are important for 4.8 release.
> Do client server compatibility checks before upgrading system tables
> --------------------------------------------------------------------
>
> Key: PHOENIX-2862
> URL: https://issues.apache.org/jira/browse/PHOENIX-2862
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Ankit Singhal
> Assignee: Ankit Singhal
> Fix For: 4.8.0
>
> Attachments: PHOENIX-2862.patch
>
>
> currently , we allow upgrade of system tables to map to system namespace by
> enabling "phoenix.schema.mapSystemTablesToNamespace" config (conjuction with
> "phoenix.connection.isNamespaceMappingEnabled")
> but we need to ensure following things whenever client connects with above
> config:-
> 1. Server should be upgraded and check consistency of these properties
> between client and server.
> 2. If above property does not exists but system:catalog exists, we should not
> start creating system.catalog.
> 3. if old client connects, it should not create system.catalog again ignoring
> the upgrade and start using it.
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