Multiple CF mutations for a row are treated atomically in the commit log, and they are sent together to the replicas. Replication occurs at the row level, not the row+cf level.
If each CF had it's own RF, odd things may happen. Like sending a batch mutation for one row and two CF's that fails because there is not enough nodes for one of the CF's. Would be other reasons as well. In short it's baked in. Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 16/02/2012, at 9:54 PM, R. Verlangen wrote: > Hi there, > > As the subject states: "Is it possible to set a replication factor per column > family?" > > Could not find anything of recent releases. I'm running Cassandra 1.0.7 and I > think it should be possible on a per CF basis instead of the whole keyspace. > > With kind regards, > Robin
