CDH Hue使用时报错: you are a Hue admin but not a HDFS superuser ,解决办法

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！