RabbitMQ连接超时错误，请大神帮忙

Question

目前正在linux上用JMeter工具做RabbitMQ并发性能测试，五台客户端同时发送100条大小为1k的
消息请求发送成功，当并发发送500时提示如下：
java.net.ConnectException: 连接超时
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at com.rabbitmq.client.impl.FrameHandlerFactory.create(FrameHandlerFactory.java:32)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:676)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:722)
at com.epri.qrtp.servicebus.DefaultServiceBus.initClient(DefaultServiceBus.java:84)
......

Answer 1

在linux上用JMeter工具做RabbitMQ并发性能测试，五台客户端同时发送100条大小为1k的
消息请求发送成功，当并发发送500时提示如下：
java.net.ConnectException: 连接超时
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at com.rabbitmq.client.impl.FrameHandlerFactory.create(FrameHandlerFactory.java:32)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:676)
at com.rabbitmq.client.ConnectionFactory.n