public List<String> nodesWithConnectionSetupTimeout(long now) {
        return connectingNodes.stream()
            .filter(id -> isConnectionSetupTimeout(id, now))
            .collect(Collectors.toList());
    }
Return the List of nodes whose connection setup has timed out.
@param now the current time in ms
clients/src/main/java/org/apache/kafka/clients/ClusterConnectionStates.java