模拟uuid的故障的解决过程
一、制造故障的过程
1. cd /var/lib/cloudera-scm-agent
2. mv uuid uuid.bak
3. Systemctl restart cloudera-scm-agent
4. 出现以下故障
二、恢复的过程
1. 查看故障主机的uuid号
2. echo -n "51a381f0-864a-49bd-81ae-8d6abadd3d02" >> uuid
3. file uuid
4. systemctl stop cloudera-scm-agent
5. systemctl start cloudera-scm-agent
6.主机正在恢复组件
7.以下是恢复正常