我尝试搜索我的问题的解决方案,但找不到堆栈溢出。
问题 当用户尝试声明队列或交换时,在RabbitMQ服务器出现问题的极端情况下,客户端保持等待而没有任何超时,这导致调用rabbitmq的线程始终保持等待状态(等待永远不会结束)。
下面是stacktrace
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:502)
at com.rabbitmq.utility.BlockingCell.get(BlockingCell.java:50)
- locked <0x00000007bb0464c8> (a com.rabbitmq.utility.BlockingValueOrException)
at com.rabbitmq.utility.BlockingCell.uninterruptibleGet(BlockingCell.java:89)
- locked <0x00000007bb0464c8> (a com.rabbitmq.utility.BlockingValueOrException)
at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:33)
at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:343)
at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:216)
at
(AMQChannel.java:118)
at com.rabbitmq.client.impl.ChannelN.queueDeclare(ChannelN.java:833)
at com.rabbitmq.client.impl.ChannelN.queueDeclare(ChannelN.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:917)
- locked <0x00000007bb555300> (a java.lang.Object)
at com.sun.proxy.$Proxy293.queueDeclare(Unknown Source)
at org.springframework.amqp.rabbit.core.RabbitAdmin.declareQueues(RabbitAdmin.java:575)
at org.springframework.amqp.rabbit.core.RabbitAdmin.access$200(RabbitAdmin.java:66)
at org.springframework.amqp.rabbit.core.RabbitAdmin$12.doInRabbit(RabbitAdmin.java:504)
at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:1456)
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1412)
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1388)
at org.springframework.amqp.rabbit.core.RabbitAdmin.initialize(RabbitAdmin.java:500)
at org.springframework.amqp.rabbit.core.RabbitAdmin$11.onCreate(RabbitAdmin.java:419)
at org.springframework.amqp.rabbit.connection.CompositeConnectionListener.onCreate(CompositeConnectionListener.java:33)
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory.createConnection(CachingConnectionFactory.java:553)
- locked <0x00000007bb057828> (a java.lang.Object)
at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:1431)
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1412)
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1388)
at org.springframework.amqp.rabbit.core.RabbitAdmin.declareQueue(RabbitAdmin.java:207)
任何帮助都将受到高度赞赏。队列声明目前在我的bean的postconstruct中调用我们的组件处理消息传递,因此不会让任何新bean创建。
更新 问题在我们的prod服务器上再次出现。当试图通过amqp-client-3.4.2直接连接它似乎工作。但是从spring-rabbit-1.6.7.RELEASE,spring-amqp-1.6.7.RELEASE它无效。
通过amqp-client-3.4.2
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("<<HOST NAME>>");
factory.setUsername("<<USERNAME>>");
factory.setPassword("<<PASSWORD>>");
factory.setVirtualHost("<<VIRTUAL HOST>>");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(QUEUE_NAME, true, false, false, null);
Code flow with rabbit-amqp client
不起作用的春天方式
CachingConnectionFactory factory = new CachingConnectionFactory();
factory.setHost("<<HOST NAME>>");
factory.setUsername("<<USERNAME>>");
factory.setPassword("<<PASSWORD>>");
factory.setVirtualHost("<<VIRTUAL HOST>>");
RabbitAdmin admin = new RabbitAdmin(factory);
Queue queue = new Queue(QUEUE_NAME);
admin.declareQueue(queue);
这个问题很少发生,我们仍在试图弄清楚这种行为背后的原因。我们尝试设置连接超时但在我们的测试程序中没有用。
进一步调试时,看起来异常不会让通知发送回我们的代码。对于没有发现问题的客户,我们正在适当地获得例外。
我们在CentOS Linux 7(核心)上使用RabbitMQ 3.6.10和Erlang 19.3.4
答案 0 :(得分:1)
队列声明目前在我的bean的后期构建中
我不能说话,但你永远不应该从post构造,afterPropertiesSet()
等与代理进行交互。在应用程序上下文生命周期中还为时过早。
有几种解决方法 - 实施SmartLifecycle
;从true
返回isAutoStartup()
并将bean置于早期阶段(参见Phased
)。完全创建应用程序上下文后,将调用start()
。
但是,通常最好将队列,绑定等定义为bean,并让框架负责为您完成所有声明。