报错信息:
Unable to connect to zookeeper server within timeout: 5000在这里插入图片描述
解决方案:

  1. 确认是否网络连接正常
  2. zookeeper连接配置地址是否错误
<dubbo:registry address="zookeeper://192.168.247.100:2181"/>
  1. 防火墙是否开启

 查看防火墙状态:systemctl status firewalld
 关闭防火墙:systemctl stop firewalld
 开启防火墙:systemctl start firewalld

扩展说明:

 查看默认防火墙状态(关闭后显示notrunning,开启后显示running)
 systemctl status firewalld.service
 关闭防火墙:
 systemctl stop firewalld.service
 开启防火墙:
 systemctl start firewalld.service
 永久关闭防火墙(可防止系统关机重启后防火墙自启动):
 systemctl disable firewalld.service
 永久开启防火墙:
 systemctl enable firewalld.service

 如果防火墙开启了,关闭或指定zookeeper端口号通过防火墙
 1)关闭Linux防火墙
 2)或者让2181端口通过防火墙。命令:iptables -I INPUT -p tcp --dport 2181 -j ACCEPT

  1. 如果以上操作完后依然不行,重启下zookeeper即可
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