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Posted to commits@samza.apache.org by "Boris Shkolnik (JIRA)" <ji...@apache.org> on 2017/03/10 21:54:04 UTC

[jira] [Created] (SAMZA-1134) simplify ZK barrier for version upgrade.

Boris Shkolnik created SAMZA-1134:
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             Summary: simplify ZK barrier for version upgrade.
                 Key: SAMZA-1134
                 URL: https://issues.apache.org/jira/browse/SAMZA-1134
             Project: Samza
          Issue Type: Sub-task
            Reporter: Boris Shkolnik


Currently the barrier protects against overwriting the barrier_done value, by multiple attempts of reading and writing (while verifying the previously read data version), but since there is only one writer, this logic could be simplified to a single check and an exception.



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