On Mon, Aug 1, 2011 at 2:03 AM, Christian Brunner <chb@xxxxxx> wrote: > I'm not sure if I have asked for this already, but I can't remember > and google is not my friend either. > > Librados has two different callback types for an async write: > > - ack > - safe > > What is the difference between these two types? Is ack faster than safe? > The osd first sends the ack when it receives the request, and it later sends the safe when the request is "safe", that is, committed to disk. Yehuda -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
