No hosts available causes uncaught exception

[calvinfo]

I have an app where I'd like to maintain availability even when I can't connect to my cassandra cluster. The rest of the app can try to make requests to the DB, and on a failure I can just put messages in a queue to be processed later.

Currently when there are no hosts available, the pool will emit an error but then proceed to throw an uncaught exception caused by accessing a property of an undefined var.

From the Pool connection code:

Pool.prototype.getConnection = function(){
  var len = this.clients.length,
      rnd = Math.floor(Math.random() * len),
      host = this.clients[rnd];

  if (!host){
    this.emit('error', new Error('No Available Connections'));
  }

  if (host.ready){  // causes exception!!
    return host;
  } else {
  ...
}

I'd like to convert this to look more like the other query functions where if the database is unavailable for any reason, I will get an unavailable exception on querying. My app can then choose whether to re-connect in the pool and how to handle the failure.

Anything I'm missing here?