https://www.cloudera.com/documentation/enterprise/5-6-x/topics/security.html
https://hadoop.rcc.uchicago.edu:7183/static/help/topics/sg_hdfs_sentry_sync.html
http://bdlabs.edureka.co/static/help/topics/sg_hdfs_sentry_sync.html
原文：https://www.cnblogs.com/WCFGROUP/p/10964997.html