rabbitmq

how to install

docker

docker run -d --hostname my-rabbit --name mq -p 8080:15672 -p 5672:5672 rabbitmq:3-management

then login http://localhost:8080/#/ with guest / guest

模型

rabbitmq的核心是queue 通过不同的exchange和bindingkey将客户端发来的信息推送到queue上
对于queue里的一个元素来讲只有一个消费者

对于消费者有routerkey的概念对于生产者有bindingkey的概念

minotor

如何查看通过某个exchange的所有msg而不消费这个msg 如何查看通过某个queue的所有msg而不消费这个msg

开启 rabbitmq-manager

rabbitmq-plugins enable rabbitmq_management

开启trace

sudo rabbitmqctl trace_on -p /
sudo rabbitmq-plugins enable  rabbitmq_tracing
# rabbitmq_tracing plugin 默认只有 guest 能够访问 tracefile
[only-guest-could-see-trace-file](https://github.com/rabbitmq/rabbitmq-tracing/issues/1)
[修复方式](https://github.com/rabbitmq/rabbitmq-tracing/pull/5#issuecomment-507278511)
```/etc/rabbitmq/advanced.config
[
    {rabbitmq_tracing, [
        {username, <<"USER">>},
        {password, <<"PASS">>}
    ]}
].

Use your own username and password of course. The <<"">> is significant.

log

rabbitmq-diagnostics status 输出中有log file 路径

# 创建用户
```bash
curl -i -u guest:guest --header "Content-Type: application/json" --request PUT --data '{"password":"dev","tags":"administrator"}' http://127.0.0.1:15672/api/users/dev

curl -i -u guest:guest --header "Content-Type: application/json" --request PUT --data '{"configure":".*","write":".*","read":".*"}' http://127.0.0.1:15672/api/permissions/%2F/dev

connection

https://www.rabbitmq.com/uri-spec.html

"amqp://guest:guest@127.0.0.1:5672/"

exchangename routerkey binding_key 关系是什么

tools

rabbitmqctl 看起来不能连接远端的rabbitmq server?

glassess

given ip port name passed what we can get from rabbitmq

rabbitmq 版本

如何debug 客户端接受不到msg的信息？ exchange routerkey是正确的

检查unroutable exchange (how???)

Exist&Change