I am reading this again http://wiki.apache.org/cassandra/HintedHandoff and got little confused. This is my understanding about how HH should work based on what I read in Dynamo Paper:
1) Say node A, B, C, D, E are in the cluster in a ring (in that order). 2) For a given key K RF=3. 3) Node B holds theyhash of that key K. Which means when K is written it will be written to B (owner of the hash) + C + D since RF = 3 4) If Node D goes down and there is a write again to key K then this time key K row will be written with W=1 to B (owner) + C + E (HH) since RF=3 needs to be satisfied. Is this correct? 5) In above scenario where node D is down and if we are reading at W=2 and R=2 would it fail even though original nodes B + C are up? Here I am thinking W=2 and R=2 means that 2 nodes that hold the key K are up so it satisfies the CL and thus writes and read will not fail. -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Understand-eventually-consistent-tp6038330p6058576.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.
