Hi, I'm trying to decommission a node from a six node Cassandra 2.0.3 cluster, following the instructions at http://www.datastax.com/documentation/cassandra/2.0/webhelp/index.html#cassandra/operations/ops_remove_node_t.html. The node has just short of 11GB data in one keyspace (RF=3), and the repair is taking forever (around 25 hours if it's keeping the current pace).
Re-reading the instructions I realized that I ran nodetool repair, instead of nodetool repair *keyspace_name*, but this can't have this kind of impact right? I ran nodetool repair -pr on the same node yesterday, and it took around 35 min. The cluster is not under significant load, neither CPU, RAM, disk nor network IO. Nothing has ever been deleted from this keyspace and no entries expire. Does anyone have any idea why a repair would take this long? When decommissioning nodes, would it be sufficient to run nodetool repair -pr on the node to be decommissioned?
