You constructed a pathological case and then got confused at the result. Consider instead a realistic case: RF=3, CL=QUORUM. Writes should go to all of A, B, and C. B is down when the write request arrives, so does not acknowledge the it. A and C acknowledge the write. Since quorum is achieved, success is returned to the client and a hint for B is written to A (since A is already a replica and since 0.6 hints go to existing replicas rather than non-replica nodes). When B comes back up, it requests hints, A sends the missed write, bringing B back in sync.
b On Thu, Jul 8, 2010 at 7:04 AM, ChingShen <chingshenc...@gmail.com> wrote: > If so, when does hinted handoff work? > > On Thu, Jul 8, 2010 at 9:55 PM, Anty <anty....@gmail.com> wrote: >> >> >> On Thu, Jul 8, 2010 at 4:11 PM, ChingShen <chingshenc...@gmail.com> wrote: >>> >>> Hi all, >>> >>> Please consider this case: (RF=1, CL=ONE) >>> >>> 1. I have A, B and C nodes. >>> 2. A node is a coordinator node, it sends a request to B node to do >>> write operation. >>> 3. B node is down during write operation, so return failure message to >>> client, and write a hint to C node. >> >> I think node A will return failure message to client. >> and will not write a hint to C node. >> >>> >>> 4. B node comes back up, then C node forwards the data to it. >>> 5. B node own data right now, although the write operation is failure. >>> >>> Correctly? >>> >>> Thanks. >>> >>> Shen >> >> >> >> -- >> Best Regards >> Anty Rao > > >
