I've seen that before when cassandra.yaml file cannot be found or is corrupted. It may be that eclipse is not starting cassandra with the current working directory set as you think it is. Sorry, cannot help much with eclipse.
There are a couple of places where that message can be logged. One is from the AbstractCassandraDaemon and the other is from the DatabaseDescriptor. Where is your's coming from? Aaron On 13 Dec 2010, at 19:22, Liangzhao Zeng wrote: > Bad configuration; unable to start server. Any idea