Re: Understanding atomicity in Cassandra

2010-07-20 Thread Alex Yiu
commit()". You still don't know for sure whether that update operation has gone through. Hope this email helps. Thanks! Regards, Alex Yiu On Tue, Jul 20, 2010 at 2:03 PM, Jonathan Ellis wrote: > 2010/7/20 Patricio Echagüe : > > Would it be bad design to store all the dat

Re: more questions on Cassandra ACID properties

2010-07-20 Thread Alex Yiu
Hi, all, (Jonathan Ellis, Jonathan Shook, Aaron Morton) Thanks for the confirmation. JonE, the "update" wording has been added to wiki page w.r.t. to insert and mutation API. Regards, Alex Yiu On Tue, Jul 20, 2010 at 2:02 PM, Jonathan Ellis wrote: > On Tue, Jul 20, 2010 at

testing please ignore

2010-07-20 Thread Alex Yiu
testing please ignore

more questions on Cassandra ACID properties

2010-07-20 Thread Alex Yiu
guess we should change the wording from "insert" to "insert or update" in the wiki doc And, ideally, insert(...) API operation name would be adapted to update_or_insert(...) Looking forward to replies that may confirm my understanding. Thanks! Regards, Alex Yiu

Re: Understanding atomicity in Cassandra

2010-07-19 Thread Alex Yiu
ess that is not a likely situation in your case. Hopefully, my email helps. See also: http://wiki.apache.org/cassandra/FAQ#batch_mutate_atomic Regards, Alex Yiu On Fri, Jul 9, 2010 at 11:50 AM, Jonathan Ellis wrote: > typically you will update both as part of a batch_mutate, and if it > fails,