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From Michael Greene <michael.gre...@gmail.com>
Subject Re: Cassandra cluster setup [WAS Re: usage]
Date Mon, 28 Sep 2009 23:07:03 GMT
Which partitioner are you using?
What are the tokens for the nodes or what does bin/nodeprobe ring
output?  Are you setting the initial token or allowing Cassandra to
choose one?
What do your keys look like?  Are they well-distributed?

Michael

On Mon, Sep 28, 2009 at 5:34 PM, Kirill A. Korinskiy
<catap+cassandra@catap.ru> wrote:
> At Mon, 28 Sep 2009 17:27:35 -0500,
> Michael Greene <michael.greene@gmail.com> wrote:
>>
>> This is a new thread continued from the Facebook-usage thread.
>>
>
> sure
>
>> Cassandra automatically shards your data based on the Partitioner you
>> have setup in storage-conf.xml.  The copies are controlled by the
>> ReplicationFactor setting in the same configuration file.  If all your
>> nodes are in the same data center, then the default
>> ReplicaPlacementStrategy of RackUnawareStrategy should be fine.
>>
>
> ok. But on my test all my data go to two nodes.
>
> --
> wbr, Kirill
>

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