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https://issues.apache.org/jira/browse/PHOENIX-2862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15276320#comment-15276320
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Ankit Singhal commented on PHOENIX-2862:
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[~jamestaylor],as metatables are accessed directly with name(SYSTEM.CATALOG and
SYSTEM.STATS) on the server also, then why to keep logic for resolving meta
tables different at client and server , I think if this property makes sense at
client then it also make sense on server too.
let me know if you think otherwise, I can make the change accordingly.
> 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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