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A服务器备份rabbitmq持久化目录到B服务器,不显示mq队列消息

news 来源：原创 2025/5/24 5:38:33

场景:在A服务器上docker启动mq服务,在mq服务器上恢复服务,结果队列消息丢失问题

1.备份持久化文件

docker inspect 容器id

      "Mounts": [{"Type": "bind","Source": "/data/containers/rabbitmq/data","Destination": "/var/lib/rabbitmq","Mode": "rw","RW": true,"Propagation": "rprivate"}

# 使用tar压缩文件
tar -zcvf rabbitmq.tar.gz /data/containers/rabbitmq/data

将压缩文件发送到备用服务器103

2.新服务器启动mq服务

1.解压文件

解压文件到当前文件夹

tar -xzvf rabbitmq.tar.gz

查看文件

(base) [root@centos-3 rabbitmq]# ls
config  data  docker-compose.yml

docker-compose文件内容如下

services:rabbitmq:container_name: rabbitmqimage: registry.cn-hangzhou.aliyuncs.com/spider_tie/rabbitmq:3.7restart: alwaysulimits:nofile:soft: 65536hard: 65536environment:- TZ=Asia/Shanghai- RABBITMQ_DEFAULT_USER=rbadmin- RABBITMQ_DEFAULT_PASS=OpsXlab2024!ivolumes:- ./data:/var/lib/rabbitmqnetworks:- app-tier#ipv4_address: 172.22.1.10ports:- 5672:5672- 15672:15672
networks:app-tier:name: app-tierdriver: bridge#external: true# ipam:#  config:#    - subnet: 172.22.1.0/24

docker-compose up -d

web端查看服务如下,mq中没有队列消息
在这里插入图片描述

可以看到队列无消息,但是原来的mq服务是有消息的
在这里插入图片描述

2.解决消息未显示问题

需要备份hostname和cookie,要不然持久化消息无法被识别

docker exec -it f43fb7de1ba1 cat /var/lib/rabbitmq/.erlang.cookie
docker exec -it f43fb7de1ba1 hostname

例如在101上操作

[root@centos-1 mnesia]# docker exec -it f43fb7de1ba1 cat /var/lib/rabbitmq/.erlang.cookie
IHMICEQVPBXTPPFDNFTT
[root@centos-1 mnesia]# docker exec -it f43fb7de1ba1 hostname
f43fb7de1ba1

然后再备用服务器103操作

(base) [root@centos-3 rabbitmq]# docker exec -it a0dbe129970f cat /var/lib/rabbitmq/.erlang.cookie
IHMICEQVPBXTPPFDNFTT
(base) [root@centos-3 rabbitmq]# docker exec -it a0dbe129970f hostname
a0dbe129970f

docker-compose.yml文件如下

services:rabbitmq:container_name: rabbitmqimage: registry.cn-hangzhou.aliyuncs.com/spider_tie/rabbitmq:3.7restart: alwayshostname: f43fb7de1ba1ulimits:nofile:soft: 65536hard: 65536environment:- TZ=Asia/Shanghai- RABBITMQ_DEFAULT_USER=rbadmin- RABBITMQ_DEFAULT_PASS=OpsXlab2024!i- RABBITMQ_ERLANG_COOKIE=IHMICEQVPBXTPPFDNFTTvolumes:- ./data:/var/lib/rabbitmqnetworks:- app-tier#ipv4_address: 172.22.1.10ports:- 5672:5672- 15672:15672
networks:app-tier:name: app-tierdriver: bridge#external: true# ipam:#  config:#    - subnet: 172.22.1.0/24