1 详细错误
0/Oct/2019 14:56:13 +0000] 28577 MainThread agent ERROR Error, CM server guid updated, expected d9bcadb4-f983-41b8-a667-66760f47bc91, received a67f5efa-8473-4f6a-94d6-231d1f432ef0 [10/Oct/2019 14:56:14 +0
2 解决，删除cm_guid然后重启服务
产生的原因是服务器以前作为集群节点安装过agent服务，再次使用时没有卸载干净。
解决办法：
rm -rf /var/lib/cloudera-scm-agent/cm_guid
service cloudera-scm-agent restart
cd /opt/cloudera-manager/cm-5.16.1/lib/cloudera-scm-agent
sudo rm -rf cm_guid
sudo /opt/cloudera-manager/cm-5.16.1/etc/init.d/cloudera-scm-agent restart