一、问题背景

rabbitMQ 架构为  rabbitMQ + keepalived  镜像模式。

rabbitmq01  192.168.1.101

rabbitmq01  192.168.1.102

vip 192.168.1.110  在rabbitmq02 上

现在rabbitmq01 故障，起不来，队列数据同步rabbbit02 有问题。

解决方法是将rabbitmq01 这个故障节点从集群中剔除，然后重新加入。

二、重新加入集群相关操作

在rabbitmq02  192.168.1.102服务器上

剔除rabbitmq01节点

# rabbitmqctl cluster_status

# rabbitmqctl  forget_cluster_node  rabbit@192-168-1-101

# rabbitmqctl cluster_status

 

在rabbitmq01  192.168.1.101服务器上

停止rabbitmq相关进程

# systemctl  stop rabbitmq-server

# ps aux | grep rabbit | grep -v grep | awk ‘{print $2}’| xargs kill -9

移除rabbitmq相关数据文件

# mkdir /kingdee/rabbitmqBackup

# mv  /var/lib/rabbitmq/*  /kingdee/rabbitmqBackup/

重新启动rabbitmq

# systemctl  start  rabbitmq-server

# ps aux | grep rabbit

创建rabbitMQ用户

# rabbitmqctl  add_user  mquser   rabbitMQ@123

注：此密码为安装时设置的rabbitMQ密码

# rabbitmqctl  list_users

# rabbitmqctl  set_user_tags  mquser   administrator

# rabbitmqctl  set_permissions   -p  /  mquser   '.*'  '.*'  '.*'

# rabbitmqctl  stop_app

# rabbitmqctl  join_cluster  rabbit@192-168-1-102

# rabbitmqctl  cluster_status

# rabbitmqctl  start_app

# systemctl  start  keepalived

在rabbitmq02  192.168.1.102服务器上

添加策略同步策略

# rabbitmqctl   set_policy ha-all  "^"   '{"ha-mode":"all","ha-sync-mode":"automatic"}'

三、参考

RabbitMQ Cluster群集安装配置

https://www.cnblogs.com/elvi/p/7736661.html

Network partition detected

Mnesia reports that this RabbitMQ cluster has experienced a network partition. 

There is a risk of losing data. Please read RabbitMQ documentation about network partitions and the possible solutions.

https://www.rabbitmq.com/partitions.html