While we are at it, the doc says that if I am doubling the strength of my cluster, and I assign calculated tokens to the new nodes, i don't need to do the nodetool move for old nodes. Won't I have to assign the old nodes with their new respective tokens too? If I had 4 nodes and I add 4 more, the token distribution for each node changes. Then how could I get away with not assigning old nodes with new tokens?

~Amulya

On Mon, Sep 5, 2011 at 4:12 AM, Sylvain Lebresne <sylvain@datastax.com> wrote:

Have you done step 6 of the 'To add nodes to a Cassandra cluster' of
http://www.datastax.com/docs/0.8/operations/clustering#adding-capacity,
aka, run nodetool cleanup on the previously existing nodes ?

--
Sylvain

On Sun, Sep 4, 2011 at 11:58 AM, amulya rattan <talk2amulya@gmail.com> wrote:
> Hi there,
> I had a 3 nodes ring, added a 4th one, and moved others to appropriate
> tokens..doing nodetool ring shows:
> 127.0.0.1 datacenter1 rack1 Up Normal 348.82 MB
> 25.00% 0
> 127.0.0.2 datacenter1 rack1 Up Normal 349.81 MB
> 25.00% 42535295865117307932921825928971026432
> 127.0.0.3 datacenter1 rack1 Up Normal 437.04 MB
> 25.00% 85070591730234615865843651857942052864
> 127.0.0.4 datacenter1 rack1 Up Normal 261.74 MB
> 25.00% 127605887595351923798765477786913079296
> Although it shows 25% on all nodes, the data distribution seems totally
> unbalanced, how did that happen?
> Also if I happen to have a thousand node cluster, and add another 100 nodes,
> is it ok to start moving all nodes to their respective new tokens
> simultaneously or one-by-one?
> Any response is appreciated.
> ~Amulya