On Thu, Sep 16, 2010 at 3:19 PM, Gurpreet Singh <gurpreet.si...@gmail.com> wrote: > 1. I was looking to increase the RF to 3. This process entails changing the > config and calling repair on the keyspace one at a time, right? > So, I started with one node at a time, changed the config file on the first > node for the keyspace, restarted the node. And then called a nodetool repair > on the node.
You need to change the RF on _all_ nodes in the cluster _before_ running repair on _any_ of them. If nodes disagree on which nodes should have replicas for keys, repair will not work correctly. Different RF for the same keyspace creates that disagreement. b
