The 4th node has even less data node than the others. And I check the
connections to the port 9160 counts among the nodes. This node also has
less connections. So it is really strange...

On Sat, Nov 14, 2015 at 5:50 AM, Robert Coli <rc...@eventbrite.com> wrote:

> On Thu, Nov 12, 2015 at 10:35 PM, Shuo Chen <chenatu2...@gmail.com> wrote:
>
>> We have a small cassandra cluster with 4 nodes for production. All the
>> nodes have similar hardware configuration and similar data load. The C*
>> version is 1.0.7 (prretty old)
>>
>> One of the node has much higher cpu usage than others and high full gc
>> frequency, but the io of this node is not high and data load of this node
>> is even lower. So I have several questions:
>>
>
> The simplest explanation is that your 4th node is the only node your
> clients ever talk to.
>
> Other simple explanations include "the 4th node owns more of the ring than
> other nodes do."
>
> =Rob
>
>



-- 
*陈硕* *Shuo Chen*
chenatu2...@gmail.com
chens...@whaty.com

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