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From "Andrew Voumard (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13003) Support a map of counters
Date Mon, 05 Dec 2016 23:43:58 GMT
Andrew Voumard created CASSANDRA-13003:
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             Summary: Support a map of counters
                 Key: CASSANDRA-13003
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13003
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Andrew Voumard
            Priority: Minor


Would it be possible to support the dynamic addition of counters, by supporting a map of counters
? This would make it easier to support situations where counters could be added more dynamically
(where their names are not known at design time).

If it makes it any easier, I would expect it to be ok if the current restriction of not being
able to delete a counter remains, meaning requests to remove an item from the map would be
ignored or return an error.

I expect it would be possible to synthesize this feature without impacting the core code,
by dynamically adding counter columns via dynamic schema ALTER statements, creating something
like <map_name>-<counter_name> columns on demand, effectively wrapping the dynamic
column addition, but native cql support would make this task simpler.




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