I have a test cluster with 3 nodes, earlier I've installed OpsCenter to watch my cluster. Every day I see, that the same one node goes down (at different time, but every day). Then I just run `service cassandra start` to fix that problem. system.log doesn't show me anything strange. What are the steps to determine issues? I didn't change logging properties (and cassandra.yaml is not far away from the default), so maybe there must be some options to be switched to debug?
Btw, the node that goes down is the most loaded (in storage capacity). Maybe the problem is in OPP? Once I've ran loadbalance command and it changed token for the first node from 0 to one of the keys (without touching another 2, I've generated tokens with tokens.py).
