Hi Ben, I suggest you to compare amount of queries for each node. May be the problem is on the client side. Yoy can do that using JMX: "org.apache.cassandra.db:type=ColumnFamilies,keyspace=<YOUR KEYSPACE>,columnfamily=<YOUR CF>","ReadCount" "org.apache.cassandra.db:type=ColumnFamilies,keyspace=<YOUR KEYSPACE>,columnfamily=<YOUR CF>","WriteCount"
Also I suggest to check output of "nodetool compactionstats". -- Alexey
