java - JMS - 即使与远程提供程序的连接正常，也无法创建 session 工厂

Question

我制作了一个 jar 来连接到 JMS 提供程序，它在服务器 (a) 中工作正常，但在服务器 (b) 中不起作用。

我通过 telnet 验证从服务器 (b) 到 JMS 提供程序的连接是否正常，如下所示:

    -> telnet -d 10.127.161.247 4447
Trying 10.127.161.247...
Connected to 10.127.161.247.

它抛出的日志和异常如下:

2018/08/01 11:19:47:921 - Processing command line arguments...
2018/08/01 11:19:47:927 - Preparing the output...  Writing to file = true
2018/08/01 11:19:50:315 - Trying to establish connection, attempt: 0
2018/08/01 11:19:52:132 - Connecting to provider: remote://10.127.161.247:4447 using user: oad_user
2018/08/01 11:19:52:132 - Creating a regular (non-secure) connection factory...
2018/08/01 11:19:53:073 - Opening a connection to the JMS provider...
2018/08/01 11:20:24:192 - Attempt failed: Failed to create session factory
javax.jms.JMSException: Failed to create session factory
        at org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createConnectionInternal(ActiveMQConnectionFactory.java:675)
        at org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createTopicConnection(ActiveMQConnectionFactory.java:267)
        at com.alcatel.ossgw.client.jms.JmsSubscriberClient.prepareConnection(JmsSubscriberClient.java:334)
        at com.alcatel.ossgw.client.jms.JmsSubscriberClient.connect(JmsSubscriberClient.java:274)
        at com.alcatel.ossgw.client.jms.JmsSubscriberClient.listen(JmsSubscriberClient.java:97)
        at com.alcatel.ossgw.client.jms.JmsSubscriberClient.main(JmsSubscriberClient.java:536)
Caused by: ActiveMQNotConnectedException[errorType=NOT_CONNECTED message=AMQ119007: Cannot connect to server(s). Tried with all available servers.]
        at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:818)
        at org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createConnectionInternal(ActiveMQConnectionFactory.java:67

我不知道如何调试这样的问题，因为我是 JMS 的新手，我将不胜感激任何评论和想法..

非常感谢

Answer 1

你有没有想过为什么会这样？我有一个相关的问题， Activity JMS 连接突然断开并且系统开始抛出此异常，直到系统重新启动完成，然后它再次连接而不会失败。