On Fri, Jun 10, 2011 at 1:09 PM, AJ <a...@dude.podzone.net> wrote: > It says "all nodes". Shouldn't it say "replication_factor nodes"?
My preferred phrasing would be "all replicas." > I can understand this if the given row already exists from a previous write > and one of the nodes that contains a replica is down. But, what if this is > the FIRST time creating this row and one of the nodes that it determines > should store one of the replicas is down? Will it choose another node to > store the replica, or will it use hints to update the chosen down node when > it comes back up? ALL means ALL. There is no such thing as "choosing another node to store a replica;" replicas are determined by the partitioner and replication strategy and cannot be changed at whim. (How would you know where to find your data, if replicas were not deterministic?) > Generally speaking for any RF value and for the FIRST write of a particular > row, does Cass select specific nodes to contain the replicas regardless of > their availability, and use hints if some of them are unavailable? Or, will > it select another available node? You should read http://wiki.apache.org/cassandra/Operations. -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
