使用Spring AMQP自动恢复AMQP连接期间的AlreadyClosedException

Question

我们在绑定到Rabbit MQ实例的Java应用程序的日志中遇到以下异常。

这是必须注意的问题，表示Spring AMQP实现中存在问题，还是可以忽略的问题？在后一种情况下，这种错误的根本原因是什么？

com.rabbitmq.client.AlreadyClosedException: connection is already closed due to connection error; protocol method: #method<connection.close>(reply-code=320, reply-text=CONNECTION_FORCED - broker forced connection closure with reason 'shutdown', class-id=0, method-id=0)
at com.rabbitmq.client.impl.AMQConnection.startShutdown(AMQConnection.java:927)
at com.rabbitmq.client.impl.AMQConnection.close(AMQConnection.java:1042)
at com.rabbitmq.client.impl.AMQConnection.close(AMQConnection.java:971)
at com.rabbitmq.client.impl.AMQConnection.close(AMQConnection.java:955)
at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.close(AutorecoveringConnection.java:305)
at org.springframework.amqp.rabbit.connection.SimpleConnection.close(SimpleConnection.java:76)
at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory$3.handleRecovery(AbstractConnectionFactory.java:389)
at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory$3.handleRecoveryStarted(AbstractConnectionFactory.java:383)
at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.notifyRecoveryListenersStarted(AutorecoveringConnection.java:652)
at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.beginAutomaticRecovery(AutorecoveringConnection.java:570)
at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.access$000(AutorecoveringConnection.java:63)
at com.rabbitmq.client.impl.recovery.AutorecoveringConnection$3.recoveryCanBegin(AutorecoveringConnection.java:513)
at com.rabbitmq.client.impl.AMQConnection.notifyRecoveryCanBeginListeners(AMQConnection.java:754)
at com.rabbitmq.client.impl.AMQConnection.doFinalShutdown(AMQConnection.java:731)
at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:615)
at java.base/java.lang.Thread.run(Unknown Source)

似乎com.rabbitmq.client.RecoveryListener接口在org.springframework.amqp.rabbit.connection.AbstractConnectionFactory中的实现无条件地关闭了连接，无论其"打开"状态如何。

@Override
public void handleRecoveryStarted(Recoverable recoverable) {
handleRecovery(recoverable);
}
@Override
public void handleRecovery(Recoverable recoverable) {
try {
connection.close();
}
catch (Exception e) {
AbstractConnectionFactory.this.logger.error("Failed to close auto-recover connection", e);
}
}

spring-amqp和spring-rabbit版本为1.7.14

谢谢，

Answer 1

您不应该在Spring中使用自动恢复；它一直有自己的恢复机制，比amqp客户端早了几年。

有些奇怪的情况是，我们无法与它共存，最终成为孤儿消费者。这些年来，我们多次试图绕过它，但都放弃了，现在只是在恢复开始前停止了。