[jira] [Created] (BOOKKEEPER-499) Message clock-vector version needs to be maintained independently with region vector clock

Mon, 10 Dec 2012 17:15:28 -0800 

Yixue (Andrew) Zhu created BOOKKEEPER-499:
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             Summary: Message clock-vector version needs to be maintained 
independently with region vector clock
                 Key: BOOKKEEPER-499
                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-499
             Project: Bookkeeper
          Issue Type: Bug
          Components: hedwig-server
    Affects Versions: 4.2.0
            Reporter: Yixue (Andrew) Zhu
            Assignee: Yixue (Andrew) Zhu
             Fix For: 4.3.0


When message is persisted, we update region vector clock and serialize it into 
the message. The original message version (of clock-vector format) is lost.

This can cause event causal relation lost, as discovered thru discussion of 
BOOKKEEPER-256.

Will upload proposal document

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