what do you mean by not adding as a seed? if I add new node to existing cluster, the new node should not be added as a seed in cassandra.yaml for other nodes in the ring? when should it be added as a seed then? once the cluster is balanced? or after manually running rebuild command?
On Wed, Aug 14, 2013 at 3:34 PM, Andrew Cobley <a.e.cob...@dundee.ac.uk>wrote: > That looks like the problem. I added the node with that machine as a > seed, realized my mistake and restarted the machine with the correct seed. > it joined the ring but without streaming. Nodetool rebuild however doesn't > seem to be fixing the situation. > > I'll remove the node and try re-adding it after cleaning > /var/lib/cassandra. > > Andy > > > > ------------------------------ > *From:* Richard Low [rich...@wentnet.com] > *Sent:* 14 August 2013 20:11 > *To:* user@cassandra.apache.org > *Subject:* Re: Vnodes, adding a node ? > > 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. > > The University of Dundee is a registered Scottish Charity, No: SC015096 >
