Memcached bucket supports rebalancing?


#1

Hi,

According to the documentation, it seems that the memcached buckets does not support rebalancing any more. Can someone please confirm?(https://developer.couchbase.com/documentation/server/5.5/understanding-couchbase/buckets-memory-and-storage/buckets.html)

Does this mean that in a cluster of 2 nodes of memcached buckets, data is not distributed evenly between the nodes?


#2

Memcache buckets never supported “rebalance” in the Couchbase bucket / vBucket sense.

While you can add and remove nodes and a memcache bucket will redistribute the keyspace across the new node count (using the Ketama hashing algorithm), existing data is not actually moved as it is with a rebalance.


#3

Thank you for the clarification.