It depends on which nodes are down and which keys you are writing. e.g. Using a the SimplePlacementStrategy, with the nodes ordered 0 to 9 and CL ALL. If nodes 8 and 9 are down, the cluster will still be up for all key ranges assigned to nodes 0, 1, 2 and 3 and the replicas for those ranges are stored on nodes 0,1,2,3,4,5,6,7
Token ranges assigned to nodes 4,5,6,7,8,9 will not available at CL all as nodes 8 and 9 are part of the replica sets for those ranges. Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 1 Jun 2011, at 01:01, Watanabe Maki wrote: > You can write if you use CL=QUORUM, but can't write with CL=ALL. > > maki > > > On 2011/05/31, at 21:03, Flavio Baronti <f.baro...@list-group.com> wrote: > >> Suppose i have a cluster with 10 nodes and RF=5. >> Will every write succeed if one or two of my nodes are down, and I use >> ConsistencyLevel=ALL? Or will some of the writes fail?
