On Wed, Feb 23, 2011 at 9:57 AM, Oleg Anastasyev <olega...@gmail.com> wrote: > From the other hand, the same article says: > "For conditional writes to work, the condition must be evaluated at all update > sites before the write can be allowed to succeed." > > This means, that when doing such an update CL=ALL must be used.
Exactly. > This could be a > bearable price to pay for conflict detection. IMO if you only get CL.ALL it's not superior enough to pessimistic locking to justify the complexity of adding it. -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
