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Benedict Elliott Smith commented on CASSANDRA-17164:
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I think this would be fine, I need to think through why I did not do this
originally, as I did consider it. It may simply have been to minimise the
change in semantics to {{system.paxos}}, without there having been any
particularly good reason. Perhaps also for debugging purposes, it helps to be
able to see whether something had been promised before it was
accepted/committed.
I think there is perhaps also some additional complexity when a replica has
promised a ballot with the same timestamp, and then proceed to accept it. I
don't think we would resolve these reliably, so we might not actually overwrite
it anyway, and I don't think there is a trivial solution to this problem in the
storage layer.
> CEP-14: Paxos Improvements
> --------------------------
>
> Key: CASSANDRA-17164
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17164
> Project: Cassandra
> Issue Type: Improvement
> Components: Consistency/Coordination, Consistency/Repair
> Reporter: Benedict Elliott Smith
> Assignee: Benedict Elliott Smith
> Priority: Normal
> Fix For: 4.1
>
>
> This ticket encompasses work for [CEP-14|
> https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-14%3A+Paxos+Improvements].
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