On Mon, Aug 1, 2011 at 2:03 AM, Christian Brunner <[email protected]> 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.
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