17.2. 关于接收器（Acceptor）和连接器（Connector）

<connectors>
    <netty-connector name="netty" socket-binding="messaging"/>
    <netty-connector name="netty-throughput" socket-binding="messaging-throughput">
        <param key="batch-delay" value="50"/>
    </netty-connector>
    <in-vm-connector name="in-vm" server-id="0"/>
</connectors>
<acceptors>
    <netty-acceptor name="netty" socket-binding="messaging"/>
    <netty-acceptor name="netty-throughput" socket-binding="messaging-throughput">
        <param key="batch-delay" value="50"/>
        <param key="direct-deliver" value="false"/>
    </netty-acceptor>
    <in-vm-acceptor name="in-vm" server-id="0"/>
</acceptors>