com.websudos.phantom.zookeeper
Interestingly enough binding to a port with a simple java.
Interestingly enough binding to a port with a simple java.net.Socket or java.net.ServerSocket to check if a local ZooKeeper exists is not enough in this day and age. We take a slightly different approach, by performing a single check when the default address is initialised. We spawn an actual ZooKeeper Client using the finagle-zookeeper integration and attempt to connect. If the initial ping is successful, we conclude a ZooKeeper is found. Otherwise, we conclude it doesn't exist.
At present times the Phantom connectors are not capable of monitoring for state change system wide, e.g a move from a local ZooKeeper to an embedded and so on, therefore this check can be done a single time, as any major state change in the system with regards to ZooKeeper going down would not affect existing Cassandra connections and any failure in a Cassandra node is handled by the Datastax driver.