public boolean hasReadyNodes(long now) {
        for (Map.Entry<String, NodeConnectionState> entry : nodeState.entrySet()) {
            if (isReady(entry.getValue(), now)) {
                return true;
            }
        }
        return false;
    }
Return true if there is at least one node with connection in the READY state and not throttled. Returns false
otherwise.

@param now the current time in ms
clients/src/main/java/org/apache/kafka/clients/ClusterConnectionStates.java