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From Sylvain Lebresne <sylv...@datastax.com>
Subject Re: load balance issue
Date Mon, 05 Sep 2011 08:12:16 GMT
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

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