channel.queueDeclare(QUEUE_NAME, true, false, false, null); // 绑定消息交换机 (EXCHANGE_NAME必须在消息队列RabbitMQ版控制台上已存在,并且Exchange的类型与控制台上的类型一致) channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ""); System.out.println(" [Consumer1] Waiting for messages."); // 订阅...
channel.queue_declare(queue='hello')defcallback(ch, method, properties, body):print("[x] Received %r"%body) channel.basic_consume( callback, queue='hello', no_ack=True)print('[*] Waiting for messages. To exit press CTRL+C') channel.start_consuming() 相关参数 (1)no-ack = False,如...
or sent to syslog. These log messages provide a lot of information on events taking place in the RabbitMQ cluster. For example, a log message is generated whenever a new message is received in a queue, when that message is replicated in another queue, if a node ...
channel.queue_declare(queue='hello')defcallback(ch, method, properties, body):print("[x] Received %r"%body) channel.basic_consume( callback, queue='hello', no_ack=True)print('[*] Waiting for messages. To exit press CTRL+C') channel.start_consuming() 相关参数 (1)no-ack = False,如...
Each priority level uses an internal queue on the Erlang VM, which takes up some resources. In most use cases it is sufficient to have no more than 5 priority levels. Payload - RabbitMQ message size and types How to handle the payload (message size) of messages sent to RabbitMQ is a ...
to be able to prioritize messages in some way In this case RabbitMQ is used. The “perform-database-backup” message is added to the same queue, but this message has a higher message priority than all other requests. The message sent will be placed at the head of the queue immediatel...
rabbitmq_queue_messages_published_total count The number of messages sent to the queue. {tenant_userid,instanceId,vHost,queueName} gauge rabbitmq_queue_messages_ready count The number of ready messages in the queue. {tenant_userid,instanceId,vHost,queueName} ...
View PDF Share This topic introduces methods to achieve high RabbitMQ performance (considering throughput and reliability) by configuring the queue length, cluster load balancing, priority queues, and other parameters. Using Short Queues If a queue has a large number of messages, memory is under he...
queueName n/a Name of the queue to receive messages from. connectionString n/a The RabbitMQ message queue connection string. The connection string is directly specified here and not through an app setting. port 0 (ignored if using connectionString) Gets or sets the Port used. Defaults to 0...
queueName n/a Name of the queue to receive messages from. connectionString n/a The RabbitMQ message queue connection string. The connection string is directly specified here and not through an app setting. port 0 (ignored if using connectionString) Gets or sets the Port used. Defaults to 0...