Hmm, it's not really the difference between continuous and scheduled... Basically, Couch is a shared-nothing system, meaning, it retains all the data on one no

Hmm, it's not really the difference between continuous and scheduled... Basically, Couch is a shared-nothing system, meaning, it retains all the data on one node. Then you can easily replicate (say via scheduled task w/ cron) the data from node to node. Riak is a distributed system, where each node that joins becomes part of a cluster of nodes and shares everything (data, work, etc).