@Override
    public void shutdown() {
        this.shuttingDown = true;

        dynamicServerResolver.shutdown();

        for (IConnectionPool pool : perServerPools.values()) {
            pool.shutdown();
        }
    }
User: michaels@netflix.com
Date: 7/8/16
Time: 12:39 PM
zuul-core/src/main/java/com/netflix/zuul/netty/connectionpool/DefaultClientChannelManager.java