[
https://issues.apache.org/jira/browse/PHOENIX-2862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15274369#comment-15274369
]
James Taylor commented on PHOENIX-2862:
---------------------------------------
I see - thanks for the pointers. I think the way you're doing it is fine, then,
but why is there a server-side config for isSystemTablesMapped? I'd expect on
the server side that you'd just check for the existence of SYSTEM.CATALOG table
in the SYSTEM namespace. Putting extra burden on the user to set this config
doesn't seem ideal to me.
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
