[jira] [Updated] (PHOENIX-2862) Do client server compatibility checks before upgrading system tables

["Ankit Singhal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-2862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ankit Singhal updated PHOENIX-2862:
-----------------------------------
    Attachment: PHOENIX-2862.patch

[~giacomotaylor], can you please review the attached patch.

> 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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