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From Raj N <raj.cassan...@gmail.com>
Subject Unbalanced ring in Cassandra 0.8.4
Date Fri, 15 Jun 2012 14:59:32 GMT
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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