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I am confident from theoretical argument [1] and experiment [2] that any system for failover between asynchronously replicated Redis nodes (in the absence of a strong external coordinator for requests) is subject to this kind of data loss and inconsistency.

If you read the post carefully, and Antirez's followup [3], I think you'll find Salvatore's claim is not that Redis is robust to partition, but that he doesn't think the risk is significant enough to address. I disagree: partitions are a real challenge for distributed systems at all scales. [4]

[1] http://aphyr.com/posts/287-asynchronous-replication-with-fai...

[2] http://aphyr.com/posts/283-call-me-maybe-redis

[3] http://antirez.com/news/57

[4] http://aphyr.com/posts/288-the-network-is-reliable




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