rabbitmq集群脑裂Network partition detected

一、场景再现

3个节点组件成的rabbitmq集群，出现数据丢失的问题，打开webui

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.
The nature of the partition is as follows:

网络测试

import socket; print(socket.create_connection(("172.20.0.31", 16560), timeout=5) is not None)

测试后发现三个节点可以ping通。

查询默认分区策略：

rabbitmqctl environment | grep cluster_partition_handling

查询后发现默认是ignore类型，具体请看下表。

二、解决方法

修改rabbitmq.conf文件，添加下面后，重启服务器

cluster_partition_handling = autoheal

修改后待观察