RabbitMQ

问题 I'm new to rabbitmq and currently trying to implement a nonblocking producer with a nonblocking consumer. I've build some test producer where I played around with typereference: @Service public class Producer { @Autowired private AsyncRabbitTemplate asyncRabbitTemplate; public <T extends RequestEvent<S>, S> RabbitConverterFuture<S> asyncSendEventAndReceive(final T event) { return asyncRabbitTemplate.convertSendAndReceiveAsType(QueueConfig.EXCHANGE_NAME, event.getRoutingKey(), event, event

问题 I have installed rabbitmq using helm chart on a kubernetes cluster. The rabbitmq pod keeps restarting. On inspecting the pod logs I get the below error 2020-02-26 04:42:31.582 [warning] <0.314.0> Error while waiting for Mnesia tables: {timeout_waiting_for_tables,[rabbit_durable_queue]} 2020-02-26 04:42:31.582 [info] <0.314.0> Waiting for Mnesia tables for 30000 ms, 6 retries left When I try to do kubectl describe pod I get this error Conditions: Type Status Initialized True Ready False

问题 I have installed rabbitmq using helm chart on a kubernetes cluster. The rabbitmq pod keeps restarting. On inspecting the pod logs I get the below error 2020-02-26 04:42:31.582 [warning] <0.314.0> Error while waiting for Mnesia tables: {timeout_waiting_for_tables,[rabbit_durable_queue]} 2020-02-26 04:42:31.582 [info] <0.314.0> Waiting for Mnesia tables for 30000 ms, 6 retries left When I try to do kubectl describe pod I get this error Conditions: Type Status Initialized True Ready False

问题 I have installed rabbitmq using helm chart on a kubernetes cluster. The rabbitmq pod keeps restarting. On inspecting the pod logs I get the below error 2020-02-26 04:42:31.582 [warning] <0.314.0> Error while waiting for Mnesia tables: {timeout_waiting_for_tables,[rabbit_durable_queue]} 2020-02-26 04:42:31.582 [info] <0.314.0> Waiting for Mnesia tables for 30000 ms, 6 retries left When I try to do kubectl describe pod I get this error Conditions: Type Status Initialized True Ready False

问题 I want to use messaging library in my application to interact with rabbitmq. Can anyone please explain the differences between pika and kombu library? 回答1: Kombu and pika are two different python libraries that are fundamentally serving the same purpose: publishing and consuming messages to/from a message broker. Kombu has a higher level of abstraction than pika. Pika only supports AMQP 0.9.1 protocol while Kombu can support other transports (such as Redis). More generally, Kombu is more

问题 I am installing rabbitMQ on ubuntu16.04. But I am getting below error. I tries searching for it but not able to resolve it. Adding group `rabbitmq' (GID 131) ... Done. Adding system user `rabbitmq' (UID 123) ... Adding new user `rabbitmq' (UID 123) with group `rabbitmq' ... Not creating home directory `/var/lib/rabbitmq'. Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.

问题 I am installing rabbitMQ on ubuntu16.04. But I am getting below error. I tries searching for it but not able to resolve it. Adding group `rabbitmq' (GID 131) ... Done. Adding system user `rabbitmq' (UID 123) ... Adding new user `rabbitmq' (UID 123) with group `rabbitmq' ... Not creating home directory `/var/lib/rabbitmq'. Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.

问题 I am installing rabbitMQ on ubuntu16.04. But I am getting below error. I tries searching for it but not able to resolve it. Adding group `rabbitmq' (GID 131) ... Done. Adding system user `rabbitmq' (UID 123) ... Adding new user `rabbitmq' (UID 123) with group `rabbitmq' ... Not creating home directory `/var/lib/rabbitmq'. Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.

问题 I am installing rabbitMQ on ubuntu16.04. But I am getting below error. I tries searching for it but not able to resolve it. Adding group `rabbitmq' (GID 131) ... Done. Adding system user `rabbitmq' (UID 123) ... Adding new user `rabbitmq' (UID 123) with group `rabbitmq' ... Not creating home directory `/var/lib/rabbitmq'. Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.

问题 I am installing rabbitMQ on ubuntu16.04. But I am getting below error. I tries searching for it but not able to resolve it. Adding group `rabbitmq' (GID 131) ... Done. Adding system user `rabbitmq' (UID 123) ... Adding new user `rabbitmq' (UID 123) with group `rabbitmq' ... Not creating home directory `/var/lib/rabbitmq'. Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details.