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From Nick Bailey <n...@datastax.com>
Subject Re: Unbalanced ring in Cassandra 0.8.4
Date Fri, 15 Jun 2012 15:06:30 GMT
This is just a known problem with the nodetool output and multiple
DCs. Your configuration is correct. The problem with nodetool is fixed
in 1.1.1

https://issues.apache.org/jira/browse/CASSANDRA-3412

On Fri, Jun 15, 2012 at 9:59 AM, Raj N <raj.cassandra@gmail.com> wrote:
> Hi experts,
>     I have a 6 node cluster across 2 DCs(DC1:3, DC2:3). I have assigned
> tokens using the first strategy(adding 1) mentioned here -
>
> http://wiki.apache.org/cassandra/Operations?#Token_selection
>
> But when I run nodetool ring on my cluster, this is the result I get -
>
> Address         DC  Rack  Status State   Load        Owns    Token
>
>  113427455640312814857969558651062452225
> 172.17.72.91    DC1 RAC13 Up     Normal  102.07 GB   33.33%  0
> 45.10.80.144    DC2 RAC5  Up     Normal  59.1 GB     0.00%   1
> 172.17.72.93    DC1 RAC18 Up     Normal  59.57 GB    33.33%
>  56713727820156407428984779325531226112
> 45.10.80.146    DC2 RAC7  Up     Normal  59.64 GB    0.00%
> 56713727820156407428984779325531226113
> 172.17.72.95    DC1 RAC19 Up     Normal  69.58 GB    33.33%
>  113427455640312814857969558651062452224
> 45.10.80.148    DC2 RAC9  Up     Normal  59.31 GB    0.00%
> 113427455640312814857969558651062452225
>
>
> As you can see the first node has considerably more load than the
> others(almost double) which is surprising since all these are replicas of
> each other. I am running Cassandra 0.8.4. Is there an explanation for this
> behaviour? Could https://issues.apache.org/jira/browse/CASSANDRA-2433 be the
> cause for this?
>
> Thanks
> -Raj

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