Using the latest datastax community version. In a full working setup the performance is brilliant. When I stop the cassandra service on any machine timeouts occurs in the cassandra-stressed tool.
Since data is replicated this should not be an data issue. Also insert errors occur with TimedOutException.
Opscenter is showing that the read/write operations are very slow.
Machines are 4 core Xeons (2.23Ghz), 6G Mem. No changes to HEAP size (seems to be using 1.5G mem)
There are no networking issue's that I am aware of.
Any idea's ?