On 04/24/2014 09:14 AM, DuyHai Doan wrote:
My customer has a cluster with 2 nodes only. I've set virtual nodes so
future addition of new nodes will be easy.
with RF=?
Now, after some benching tests with massive data insert, I can see
with "htop" that one node has its CPU occupation up to 60% and the other
only around 10%
This would make sense if the keyspace is RF=1 and the client is
connecting to one node. This also makes sense if the KS is RF=2 and the
client is connecting to one node.
The massive insertion workload consist of random data and random
string (20 chars) as partition key so in theory, the Murmur3 partitioner
should dispatch then evenly between both nodes...
Is there any existing JIRA related to load balancing issue with vnodes ?
vnode != node
Clients connect to nodes - real servers with a network connection.
Vnodes are internal to how C* distributes data in the cluster and have
nothing to do with network connections of the nodes. Load balancing
client connections is at the node/network level and how the
client/driver is configured to distribute network connections - has
nothing to do with vnodes.
--
Michael
