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by morelisp 1610 days ago
It's less about scale and more about availability - by the time I've set up a 3 Redis + 3 sentinel cluster it doesn't look operationally too different in complexity than a small Kafka cluster (and more complex once KRaft is ready). But a single non-HA Redis is way easier. (But if I don't need HA - a single memcache is easier yet...)