RocketMQ

Docker容器部署

broker.conf

brokerClusterName=cluster
brokerName=broker-a
brokerId=0
deleteWhen=04
fileReservedTime=48
brokerRole=ASYNC_MASTER
flushDiskType=ASYNC_FLUSH
# 注意，宿主IP是你计算机网卡的IP
brokerIP1=172.21.23.24

docker-compose.yml

version: '3'
services:
  namesrv:
    image: apache/rocketmq:latest
    container_name: rmqnamesrv
    ports:
      - 9876:9876
    networks:
      - rocketmq
    command: sh mqnamesrv
  broker:
    image: apache/rocketmq:latest
    container_name: rmqbroker
    ports:
      - 10909:10909
      - 10911:10911
      - 10912:10912
    environment:
      - NAMESRV_ADDR=namesrv:9876
    depends_on:
      - namesrv
    networks:
      - rocketmq
    volumes:
	 # logs、store目录都需要写权限
      - /data/rocketmq/broker/logs:/home/rocketmq/logs
      - /data/rocketmq/broker/store:/home/rocketmq/store
	 # // 根据版本不同动态调整相应目录
      - /data/rocketmq/broker/conf/broker.conf:/home/rocketmq/rocketmq-4.9.2/conf/broker.conf
     # 注意 -c参数
	command: sh mqbroker -c /home/rocketmq/rocketmq-4.9.2/conf/broker.conf
  dashboard:
    image: apacherocketmq/rocketmq-dashboard:latest
    container_name: rmqdashboard
    #下方为ulimit配置soft和hard的大小
    ulimits:
      nofile:
        soft: 65536
        hard: 65536
    ports:
      - 8083:8080
    environment:
      - JAVA_OPTS=-Drocketmq.namesrv.addr=namesrv:9876
    depends_on:
      - namesrv
    networks:
      - rocketmq
networks:
  rocketmq:
    driver: bridge

dashboard相关配置

在对应的 rocketMQ 的启动服务器上面，需要增加端口开放，不然这里就访问不到。我这里是使用的是 iptables ，下面是相关命令

iptables -A INPUT -p tcp --dport 8087 -j ACCEPT 
iptables -A INPUT -p tcp --dport 9876 -j ACCEPT 
iptables -A INPUT -p tcp --dport 10909 -j ACCEPT 
iptables -A INPUT -p tcp --dport 10911 -j ACCEPT 
iptables -A INPUT -p tcp --dport 10912 -j ACCEPT 

service iptables save        #保存配置 
service iptables restart     #重启服务 
service iptables status      #查看状态

遇到的问题

问题描述

library initialization failed - unable to allocate file descriptor table - out of memoryAborted (core dumped)

解决方案

  在宿主机执行ulimit -n 查看具体数量，如果是1024则需要调大一些

// 查看
ulimit -n
// 设置
ulimit -n 65536
// 刷新
source /etc/profile

  在docker-compose配置文件中增加ulimit配置

    #下方为ulimit配置soft和hard的大小
    ulimits:
      nofile:
        soft: 65536
        hard: 65536

 

问题描述

closeChannel: close the connection to remote address[] result: true

解决方案

在conf/broker.conf配置文件中增加

brokerIP1=X.X.X.X（公网IP）

 

SpringBoot 集成

监听器接收消息可能会有几秒钟的延误，具体原因 TODO

Topic 会自动创建，无需手动

 

参考文章

【1】SpringBoot 集成 RocketMQ

【2】dashboard 弹窗显示无法连接10909端口