cassandra driver 在连接过程中如何找到第一个联系的主机？
How to find the first host contacted by cassandra driver during connection?
有没有办法找出驱动程序在初始设置期间首先联系了哪个节点？比如有没有办法找到被联系的主机10.9.58.64？
WARNING:cassandra.cluster:Cluster.__init__ called with contact_points specified, but no load_balancing_policy. In the next major version, this will raise an error; please specify a load-balancing policy. (contact_points = ['cassandranode1,;cassandranode2'], lbp = None)
DEBUG:cassandra.cluster:Connecting to cluster, contact points: ['cassandranode1,;cassandranode2']; protocol version: 4
DEBUG:cassandra.io.asyncorereactor:Validated loop dispatch with cassandra.io.asyncorereactor._AsyncorePipeDispatcher
DEBUG:cassandra.pool:Host 10.9.58.64 is now marked up
DEBUG:cassandra.pool:Host 10.9.58.65 is now marked up
DEBUG:cassandra.cluster:[control connection] Opening new connection to 10.9.58.64
建立连接后，您可以立即使用 cluster.get_control_connection_host function to get information about host to which so-called control connection is established. It's used for administrative purposes, such as getting the updates on the status of the nodes in the cluster, etc. There is more information about control connection in the documentation of Java driver。
有没有办法找出驱动程序在初始设置期间首先联系了哪个节点？比如有没有办法找到被联系的主机10.9.58.64？
WARNING:cassandra.cluster:Cluster.__init__ called with contact_points specified, but no load_balancing_policy. In the next major version, this will raise an error; please specify a load-balancing policy. (contact_points = ['cassandranode1,;cassandranode2'], lbp = None)
DEBUG:cassandra.cluster:Connecting to cluster, contact points: ['cassandranode1,;cassandranode2']; protocol version: 4
DEBUG:cassandra.io.asyncorereactor:Validated loop dispatch with cassandra.io.asyncorereactor._AsyncorePipeDispatcher
DEBUG:cassandra.pool:Host 10.9.58.64 is now marked up
DEBUG:cassandra.pool:Host 10.9.58.65 is now marked up
DEBUG:cassandra.cluster:[control connection] Opening new connection to 10.9.58.64
建立连接后，您可以立即使用 cluster.get_control_connection_host function to get information about host to which so-called control connection is established. It's used for administrative purposes, such as getting the updates on the status of the nodes in the cluster, etc. There is more information about control connection in the documentation of Java driver。