Opened https://issues.apache.org/jira/browse/CASSANDRA-2006 with the solution we had suggested on the MultiTenant wiki page.
On Tue, Jan 18, 2011 at 11:56 PM, David Boxenhorn <da...@lookin2.com> wrote: > I think tuning of Cassandra is overly complex, and even with a single > tenant you can run into problems with too many CFs. > > Right now there is a one-to-one mapping between memtables and SSTables. > Instead of that, would it be possible to have one giant memtable for each > Cassandra instance, with partial flushing to SSTs? > > It seems to me like a single memtable would make it MUCH easier to tune > Cassandra, since the decision whether to (partially) flush the memtable to > disk could be made on a node-wide basis, based on the resources you really > have, instead of the guess-work that we are forced to do today. >
