RabbitMQ 的CLI管理工具 rabbitmqadmin(17) 可以成功发布,然后我尝试了不指定 exchange,只指定routing_key=first,发现报Message published but NOT routed,说明不指定 exchange 的情况下,系统又默认去找为空的 exchange,并且在它下面去找routing_key=first的binding ,但是没找到,于是信息路由不成功 fanout的特性 定义...
Sometimes after restart when I try to publish messages to my exchange I got "Message published, but not routed.", but when I try to publish message using default exchange, everything ok and message is published successfully. This problem can be fixed with queue recreation or with rebinding q...
2017-10-24 9:37:04:412: Message published Node: rabbit@node1 Connection: <rabbit@node1.3.3552.0> Virtual host: / User: root Channel: 1 Exchange: exchange Routing keys: [<<"rk">>] Routed queues: [<<"queue">>] Properties: [{<<"delivery_mode">>,signedint,1},{<<"headers">>,tabl...
{exchange:'my-events',type:'topic'}],// With a "topic" exchange, messages matching this pattern are routed to the queuequeueBindings:[{exchange:'my-events',routingKey:'users.*'}],},async(msg)=>{console.log('received message (user-events)',msg)// The message is automatically ...
Route messages based on their properties, such as message_id, correlation_id, or timestamp. In this mode, the hash-property parameter is required to declare the exchange, and messages must contain the specified property. Otherwise, messages will be routed to the same queue. public class Con...
Message Persistence. Messages can be persisted to disk, ensuring they are not lost if the RabbitMQ server restarts or encounters an error. This property is essential for critical applications where data loss cannot be tolerated. Multiple Protocols. RabbitMQ supports various messaging protocols, includi...
Recall how we published a message before: $channel->basic_publish($msg, '', 'hello'); Here we use the default or nameless exchange: messages are routed to the queue with the name specified by routing_key, if it exists. The routing key is the third argument to basic_publishNow...
The plugin provides a new exchange type,"x-modulus-hash", that will use a hashing function to partition messages routed to a logical queue across a number of regular queues (shards). The"x-modulus-hash"exchange will hash the routing key used to publish the message and then it will apply...
Recall how we published a message before: channel.default_exchange.publish('hello', routing_key: 'hello') Here we use the default or nameless exchange: messages are routed to the queue with the name specified by :routing_key, if it exists.Now...
three parts to any successful routing of an AMQP message: exchanges, queues, andbindings. The exchanges are where producers publish their messages, queues are where the messages end up and are received by consumers, and bindings are how the messages get routed from the exchange to particular que...