CDH Hue使用時報錯: you are a Hue admin but not a HDFS superuser ,解決辦法

1. 報錯：you are a Hue admin but not a HDFS superuser

hue, 打開file browser頁面報錯：

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組成。原來是hadoop1為活躍namenode，變成了hadoop2為活躍。手動切換namenode，變成hadoop1為活躍。hue恢複正常使用。

2.添加新的hue load balance，啟動時報錯

ImportError: libxslt.so.1: cannot open shared object file: No such file or directory
           

解決：

yum install libxslt
           

繼續報錯 ：

Failed to find the Apache HTTPD executable.
           

解決：

yum install httpd.x86_64
           

繼續報錯：

cannot find /usr/lib64/httpd/modules/mod_ssl.so
           

解決：

從運作正常的load balance 主機上複制/usr/lib64/httpd/modules/mod_ssl.so 到目标主機上
           

啟動成功！