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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2841) Arbitrary namespace and table metadata tags
Date Fri, 23 May 2014 18:21:03 GMT
Christopher Tubbs created ACCUMULO-2841:
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             Summary: Arbitrary namespace and table metadata tags
                 Key: ACCUMULO-2841
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2841
             Project: Accumulo
          Issue Type: New Feature
          Components: client
            Reporter: Christopher Tubbs
             Fix For: 1.7.0


Application-level tags (tagName = tagValue) could be added to tables and namespaces, to allow
applications to set application-level metadata about a namespace or table.

Use cases include management for billing, administrator notes, date created, last ingest time,
stats, information about the table's schema... or anything else an application might wish
to use tags for.

These tags could be stored in zookeeper, but are probably best stored in the metadata table
(probably in a separate reserved area of the metadata table, ~tag) because they could be arbitrarily
large and do not need to be persisted in memory.

This feature would include new APIs to manipulate table / namespace metadata. Considerations
should be made to ensure users have appropriate permissions to add tags to an object.

This feature could be used to implement ACCUMULO-650.



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