rabbitmq坑点与异常处理

一、None of the specified endpoints were reachable

这个异常在创建连接时抛出(CreateConnection()),原因一般是ConnectionFactory参数设置不对,比如HostName、UserName、Password

标准设置:

var factory = new ConnectionFactory();

factory.UserName = QueueSetttiong.UserName; //用户名

factory.Password = QueueSetttiong.Password; //密码

factory.HostName = QueueSetttiong.HostName; //Rabbitmq服务IP,不包含端口

factory.Port = AmqpTcpEndpoint.UseDefaultPort;

factory.VirtualHost = QueueSetttiong.VirtualHost; //默认为"/"

factory.Protocol = Protocols.DefaultProtocol;

部署生产后,factory配置都ok,但是还是抛异常None of the specified endpoints were reachable,最后发现原因是生产机器防火墙未打开RabbitMQ的端口,RabbitMQ的默认端口是:5672

另外一个可能的原因:未设置VirtualHost的权限

设置方法:RabbitmqWeb管理网站-->Admin

未设置权限时:

rabbitmq坑点与异常处理

设置权限:(点击admin进入设置页面)

rabbitmq坑点与异常处理

二、异常:unable to connect to node [email protected]: nodedown

网上说要修改主机名,找半天不知道怎么修改,重新安装Rabbitmq服务端即可,有时候需要重启

三、异常:Message:Already closed: The AMQP operation was interrupted: AMQP close-reason, initiated by Peer, code=320, text="CONNECTION_FORCED - broker forced connection closure with reason 'shutdown'", classId=0, methodId=0, cause= StackTrace

原因:队列服务端重启后,队列发布端断开了接口,无法再次发送消息

解决:发送端设置断开连接后自动启动属性,默认为断开后每隔五秒钟重试连接

var factory = new ConnectionFactory();

factory.AutomaticRecoveryEnabled = true; //设置端口后自动恢复连接属性即可

四、Rabbitmq实际数据文件、日志文件、配置文件路径

地址栏输入:%APPDATA%\RabbitMQ\

C:\Users\Administrator\AppData\Roaming\RabbitMQ

信息来源:C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-3.5.1\etc 中的README.txt




本文转自94cool博客园博客,原文链接:http://www.cnblogs.com/94cool/p/6437032.html,如需转载请自行联系原作者