I am in the process of doing a rolling restart on a 4-node cluster running Cassandra 2.1.9. I stopped and started Cassandra on node 1 via "service cassandra stop/start", and noted nothing unusual in either system.log or cassandra.log. Doing a "nodetool status" from node 1 shows all four nodes up:
user@node001=> nodetool status Datacenter: datacenter1 ======================= Status=Up/Down |/ State=Normal/Leaving/Joining/Moving -- Address Load Tokens Owns Host ID Rack UN 192.168.187.121 538.95 GB 256 ? c99cf581-f4ae-4aa9-ab37-1a114ab2429b rack1 UN 192.168.187.122 630.72 GB 256 ? bfa07f47-7e37-42b4-9c0b-024b3c02e93f rack1 UN 192.168.187.123 572.73 GB 256 ? 273df9f3-e496-4c65-a1f2-325ed288a992 rack1 UN 192.168.187.124 625.05 GB 256 ? b8639cf1-5413-4ece-b882-2161bbb8a9c3 rack1 But doing the same command from any other of the 3 nodes shows node 1 still down. user@node002=> nodetool status Datacenter: datacenter1 ======================= Status=Up/Down |/ State=Normal/Leaving/Joining/Moving -- Address Load Tokens Owns Host ID Rack DN 192.168.187.121 538.94 GB 256 ? c99cf581-f4ae-4aa9-ab37-1a114ab2429b rack1 UN 192.168.187.122 630.72 GB 256 ? bfa07f47-7e37-42b4-9c0b-024b3c02e93f rack1 UN 192.168.187.123 572.73 GB 256 ? 273df9f3-e496-4c65-a1f2-325ed288a992 rack1 UN 192.168.187.124 625.04 GB 256 ? b8639cf1-5413-4ece-b882-2161bbb8a9c3 rack1 Is there something I can do to remedy this current situation - so that I can continue with the rolling restart?