On 14 August 2013 20:02, Andrew Cobley <a.e.cob...@dundee.ac.uk> wrote:
> I have small test cluster of 2 nodes. I ran a stress test on it and with > nodetool status received the following: > > /usr/local/bin/apache-cassandra-2.0.0-rc1/log $ ../bin/nodetool status > Datacenter: datacenter1 > ======================= > Status=Up/Down > |/ State=Normal/Leaving/Joining/Moving > -- Address Load Tokens Owns (effective) Host ID > Rack > UN 192.168.0.11 141.13 MB 256 49.2% > 4d281e2e-efd9-4abf-bb70-ebdf8e2b4fc3 rack1 > UN 192.168.0.10 145.59 MB 256 50.8% > 7fc5795a-bd1b-4e42-88d6-024c5216a893 rack1 > > I then added a third node with no machines writing to the system. Using > nodetool status I got the following: > > /usr/local/bin/apache-cassandra-2.0.0-rc1/log $ ../bin/nodetool status > Datacenter: datacenter1 > ======================= > Status=Up/Down > |/ State=Normal/Leaving/Joining/Moving > -- Address Load Tokens Owns (effective) Host ID > Rack > UN 192.168.0.11 141.12 MB 256 32.2% > 4d281e2e-efd9-4abf-bb70-ebdf8e2b4fc3 rack1 > UN 192.168.0.10 145.59 MB 256 35.3% > 7fc5795a-bd1b-4e42-88d6-024c5216a893 rack1 > UN 192.168.0.12 111.9 KB 256 32.5% > e5e6d8bd-c652-4c18-8fa3-3d71471eee65 rack1 > > Is this correct ? I was under the impression that adding a node to an > existing cluster would distribute the load around the cluster. Am I perhaps > missing a step or have a config error perhaps ? > How did you add the node? It looks like it didn't bootstrap but just joined the ring. You need to make sure the node is not set as a seed and that auto_bootstrap is true (the default). Alternatively, you could run 'nodetool rebuild' to stream data from the other nodes. Richard.
