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Posted to dev@bookkeeper.apache.org by "Rithin Shetty (JIRA)" <ji...@apache.org> on 2017/01/26 00:27:26 UTC

[jira] [Created] (BOOKKEEPER-995) Implement guaranteed writes to specified number of racks

Rithin Shetty created BOOKKEEPER-995:
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             Summary: Implement guaranteed writes to specified number of racks
                 Key: BOOKKEEPER-995
                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-995
             Project: Bookkeeper
          Issue Type: New Feature
            Reporter: Rithin Shetty
            Assignee: Rithin Shetty


With rackaware ensemble placement we get guaranteed writes to at least 2 different racks for every write quorum. We want to extend this such that user can ask for writes to at least 3 or more racks per write quorum. This is useful to ensure higher availability when one of the racks is already down: the remaining copies are guaranteed to be on different racks and hence can with stand another rack failure assuming the write quorum is 3.



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