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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OAK-7703) Format version handling on upgrade
Date Thu, 09 Aug 2018 07:28:00 GMT
Marcel Reutegger created OAK-7703:
-------------------------------------

             Summary: Format version handling on upgrade
                 Key: OAK-7703
                 URL: https://issues.apache.org/jira/browse/OAK-7703
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: documentmk
            Reporter: Marcel Reutegger


The current upgrade procedure for a DocumentNodeStore deployment requires downtime and reduced
capacity for some time. Future upgrade should work without downtime. This means a format version
change introduced with OAK-4529 must be handled differently. It must be possible to update
the DocumentNodeStore to a version that supports a newer format version, but writing in that
version must be postponed to a later point, when all cluster nodes have been upgraded.



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