I am new to Couchbase and currently evaluating it as a caching solution. I first tried a Memcached bucket since according to the documentation this seemed to be what I needed. But these kind of buckets do not support replication, persistance and rebalancing. Cause at least replication is very important for my use-case, I have to use Couchbase buckets.
The question is why Memcached buckets exists? What is the advantage in comparison to Couchbase buckets? Faster reading and writing since nothing is persisted or replicated? Or is it just Memcached compatibility?