1. 报错：you are a Hue admin but not a HDFS superuser
hue, 打开file browser页面报错：
Cannot access: /user/hue. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS supergroup, "supergroup". StandbyException: Operation category READ is not supported in state standby. Visit https://s.apache.org/sbnn-error (error 403) 原因是：HA的namenode由hadoop1和hadoop2组成。原来是hadoop1为活跃namenode，变成了hadoop2为活跃。手动切换namenode，变成hadoop1为活跃。hue恢复正常使用。
2.添加新的hue load balance，启动时报错
ImportError: libxslt.so.1: cannot open shared object file: No such file or directory 解决：
yum install libxslt 继续报错 ：
Failed to find the Apache HTTPD executable. 解决：
yum install httpd.x86_64 继续报错：
cannot find /usr/lib64/httpd/modules/mod_ssl.so 解决：
从运行正常的load balance 主机上复制/usr/lib64/httpd/modules/mod_ssl.so 到目标主机上 启动成功！
文章来源: https://blog.csdn.net/maximiliansheng/article/details/90510655