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From "Zhen Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HELIX-567) Improve read external view updates during rolling upgrade
Date Fri, 06 Feb 2015 22:53:34 GMT
Zhen Zhang created HELIX-567:
--------------------------------

             Summary: Improve read external view updates during rolling upgrade
                 Key: HELIX-567
                 URL: https://issues.apache.org/jira/browse/HELIX-567
             Project: Apache Helix
          Issue Type: Bug
            Reporter: Zhen Zhang


During cluster rolling upgrade, external views might be updated lots of times. If we have
lots of listeners on the external views, the read bandwidth on the ZK side will not scale.



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