1.问题错误：
httpd: Syntax error on line 82 of /opt/cloudera-manager/cm-5.16.1/run/cloudera-scm-agent/process/348-hue-HUE_LOAD_BALANCER/httpd.conf: Cannot load /usr/lib64/httpd/modules/mod_ssl.so into server: /usr/lib64/httpd/modules/mod_ssl.so: cannot open shared object file: No such file or directory
原因：服务器环境没有预先安装httpd，mod_ssl服务
解决方法：
#yum -y install httpd mod_ssl
#systemctl enable httpd
#systemctl start httpd
然后，web界面上重启Load Balancer 如下图所示：