On Tue, Apr 6, 2010 at 10:12 AM, Steve <sjh_cassan...@shic.co.uk> wrote: > On 06/04/2010 15:26, Eric Evans wrote: ... > I've read all about QUORUM, and it is generally useful, but as far as I > can tell, it can't give me a transaction...
Correct. Only individual operations are atomic, and ordering of insertions is not guaranteed. I think there were some logged Jira issues to allow grouping of operations into what seems to amount to transactions, which could help a lot here... but I can't find it now (or maybe it has only been discussed so far?). If I understand this correctly, it would just mean that you could send a sequence of operations, to be completed as a unit (first into journal, then into memtable etc). -+ Tatu +-