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
