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From Raj N <raj.cassan...@gmail.com>
Subject Re: Unbalanced ring in Cassandra 0.8.4
Date Fri, 15 Jun 2012 17:24:07 GMT
Actually I am not worried about the percentage. Its the data I am concerned
about. Look at the first node. It has 102.07GB data. And the other nodes
have around 60 GB(one has 69, but lets ignore that one). I am not
understanding why the first node has almost double the data.

Thanks
-Raj

On Fri, Jun 15, 2012 at 11:06 AM, Nick Bailey <nick@datastax.com> wrote:

> 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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