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From "Kanak Biscuitwala (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HELIX-351) Write an algorithm that checks if a state model is backwards compatible
Date Sun, 12 Jan 2014 06:22:50 GMT
Kanak Biscuitwala created HELIX-351:
---------------------------------------

             Summary: Write an algorithm that checks if a state model is backwards compatible
                 Key: HELIX-351
                 URL: https://issues.apache.org/jira/browse/HELIX-351
             Project: Apache Helix
          Issue Type: Task
            Reporter: Kanak Biscuitwala
            Assignee: Kanak Biscuitwala


People may realize that their current state model is insufficient for their resource. However,
no one has really formalized the notion of backward compatibility of a state model. We should
have an algorithm that checks if an updated state model definition is compatible with the
existing one.

With this in place, we can also support rebalancers dynamically updating state model definitions
as part of the pipeline.



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