Hi, I finally successfully removed the "ghost" node using unsafeAssassinateEndpoint() as described there : http://tumblr.doki-pen.org/post/22654515359/assinating-cassandra-nodes, I hope this can help more people.
Nodetool gossipinfo gives me now the following info for the ghost node : /10.56.62.211 RELEASE_VERSION:1.1.2 RPC_ADDRESS:0.0.0.0 REMOVAL_COORDINATOR:REMOVER,85070591730234615865843651857942052864 SCHEMA:59adb24e-f3cd-3e02-97f0-5b395827453f STATUS:LEFT,42529904547457370790386101505459979624,1344611213445 LOAD:11594.0 DC:eu-west RACK:1b Instead of : /10.56.62.211 RELEASE_VERSION:1.1.2 LOAD:11594.0 RACK:1b SCHEMA:59adb24e-f3cd-3e02-97f0-5b395827453f DC:eu-west REMOVAL_COORDINATOR:REMOVER,85070591730234615865843651857942052864 STATUS:removed,170141183460469231731687303715884105727,1342453967415 RPC_ADDRESS:0.0.0.0 Cassandra-cli describe cluster now don't show me any unreachable node. The only issue that remains is that my nodes aren't well load balanced yet... After repairing, cleaning up, restarting all nodes I still have the following ring : Address DC Rack Status State Load Owns Token 85070591730234615865843651857942052864 10.59.21.241 eu-west 1b Up Normal 103.19 GB 50.00% 0 10.58.83.109 eu-west 1b Up Normal 62.62 GB 50.00% 85070591730234615865843651857942052864 Any idea on why I can't get the load well balanced in this cluster ? Alain