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

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

Ankit Singhal created PHOENIX-2862:
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             Summary: 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


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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