Viraj Jasani created PHOENIX-6989:
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             Summary: Expose server side metrics for DDL operations
                 Key: PHOENIX-6989
                 URL: https://issues.apache.org/jira/browse/PHOENIX-6989
             Project: Phoenix
          Issue Type: Sub-task
            Reporter: Viraj Jasani
            Assignee: Jing Yu


In order to get some insights into the frequency of the DDL operations, we 
should expose server side metrics from MetaDataEndpointImpl for all DDL 
endpoints:
 * createTable
 * createSchema
 * createFunction
 * addColumn
 * addIndexToTable
 * dropTable
 * dropIndexes
 * dropColumn
 * dropSchema
 * dropFunction

etc.

We should also log the table/view/index/column being created/modified as part 
of the above endpoints.

Metrics and logs would also be helpful while debugging issues during cache 
invalidation as part of the DDL operations.



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