On Wed, May 26, 2010 at 04:45, Todd Nine <t...@spidertracks.co.nz> wrote: > > Now, here is where I can't find what I need in the doc. In case 1, if my > mutation from biz op 2 were to fail during a batch mutate operation > encapsulating all mutations, does the batch mutation as a whole not get > executed, or would I still have the mutation from op 1 written to cassandra > while the op 2 write fails? > Thanks,
batch_mutate makes no atomicity guarantees. It s intended to help avoiding many round-trips. It can fail half-way through leaving you with a partially completed batch. Gary.
