None 的指定端点可访问

Question

从 .net 应用程序发布消息时，rabbitmq 出现间歇性问题。它在系统中产生大量噪音。我已尝试使用谷歌搜索，但找不到问题的根本原因。

这是我在应用程序日志中看到的错误，

None of the specified endpoints were reachable
Endpoints attempted:
------------------------------------------------
endpoint=amqp-0-9://localhost:5672, attempts=1
System.TimeoutException: Connection to amqp-0-9://localhost:5672 timed out
   at RabbitMQ.Client.Impl.SocketFrameHandler_0_9.Connect(TcpClient socket, AmqpTcpEndpoint endpoint, Int32 timeout)
   at RabbitMQ.Client.Impl.SocketFrameHandler_0_9..ctor(AmqpTcpEndpoint endpoint, ObtainSocket socketFactory, Int32 timeout)
   at RabbitMQ.Client.Framing.Impl.v0_9_1.ProtocolBase.CreateFrameHandler(AmqpTcpEndpoint endpoint, ObtainSocket socketFactory, Int32 timeout)
   at RabbitMQ.Client.ConnectionFactory.FollowRedirectChain(Int32 maxRedirects, IDictionary`2 connectionAttempts, IDictionary`2 connectionErrors, AmqpTcpEndpoint[]& mostRecentKnownHosts, AmqpTcpEndpoint endpoint)
================================================
Stack trace:
   at RabbitMQ.Client.ConnectionFactory.CreateConnection(Int32 maxRedirects)
   at RabbitMQ.Client.ConnectionFactory.CreateConnection()

Answer 1

我已经通过使 RabbitMQ Connection 对象成为单例来确保重用连接而不是每次都建立新连接来解决这个问题。

None 的指定端点可访问

None of the specified endpoints were reachable

.net

c#

rabbitmq