markc questions

markc answers

• Host replied with server error: java.lang.String cannot be cast to java.util.UUID
• Exception in main thread java.lang.NoClassDefFoundError
• What happens when all seed nodes in Cassandra are down? Can new nodes join the cluster at that point?
• What types of tombstones does Cassandra support?
• Cassandra CQLSH OperationTimedOut error=Client request timeout. See Session.execute[_async](timeout)
• Cannot achieve consistency level ONE: info={ 'required_replicas': 1, 'alive_replicas': 0, 'consistency': 1}
• What does rows_merged mean in compactionhistory?
• Cassandra Error message: Not marking nodes down due to local pause. Why?
• Clarifications about nodetool repair -pr
• What's the nature of Cassandra "write timeout"?