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From "Junkai Xue (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HELIX-637) StateModelDefinition is not updated when it changed
Date Sun, 30 Oct 2016 21:32:58 GMT
Junkai Xue created HELIX-637:

             Summary: StateModelDefinition is not updated when it changed
                 Key: HELIX-637
                 URL: https://issues.apache.org/jira/browse/HELIX-637
             Project: Apache Helix
          Issue Type: Bug
          Components: helix-core
    Affects Versions: 0.6.4
            Reporter: Junkai Xue
            Assignee: Junkai Xue
             Fix For: 0.6.x

Currently, if StateModelDefinition already exists in the Znode, even it has already been changed,
Helix will not populate the latest version.

It is because in the StateModelDefinition write into ZK function, it only does create operation
instead of update.

Fix: 1. Check whether there already exists StateModelDefition.
       2. Compare if it is different or not. 

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