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From Piavlo <lolitus...@gmail.com>
Subject Re: ReadCount change rate is different across nodes
Date Wed, 30 Oct 2013 18:12:14 GMT
On 10/30/2013 02:06 AM, Daning Wang wrote:
> We are running 1.2.5 on 8 nodes(256 tokens). all the nodes are running 
> on same type of machine. and db size is about same. but recently we 
> checked ReadCount stats through jmx, and found that some nodes got  3 
> times change rate(we have calculated the changes per minute)  than 
> others.
>
> We are using hector on client side, and clients are connecting to all 
> the servers, we checked open connections on each server, the numbers 
> are about same.
>
> What could cause this problem, how to debug this?
check per node reads latency CF metrics, and i guess you have dynamic 
snitch enabled?
http://www.datastax.com/dev/blog/dynamic-snitching-in-cassandra-past-present-and-future
>
>
> Thanks in advance,
>
> Daning
>


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