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From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-9739) Migrate counter-cache to be fully off-heap
Date Mon, 06 Jul 2015 16:54:06 GMT
Robert Stupp created CASSANDRA-9739:
---------------------------------------

             Summary: Migrate counter-cache to be fully off-heap
                 Key: CASSANDRA-9739
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9739
             Project: Cassandra
          Issue Type: Sub-task
            Reporter: Robert Stupp
             Fix For: 3.x


Counter cache still uses a concurrent map on-heap. This could go to off-heap and feels doable
now after CASSANDRA-8099.

Evaluation should be done in advance based on a POC to prove that pure off-heap counter cache
buys a performance and/or gc-pressure improvement.

In theory, elimination of on-heap management of the map should buy us some benefit.



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