hadoop配置在线刷新

动态刷新hdfs配置：
hdfs dfsadmin -fs hdfs://nn1:8020 -refreshSuperUserGroupsConfiguration
hdfs dfsadmin -fs hdfs://nn2:8020 -refreshSuperUserGroupsConfiguration

动态刷新yarn配置：
yarn rmadmin -fs hdfs://nn1:8020 -refreshSuperUserGroupsConfiguration
yarn rmadmin -fs hdfs://nn2:8020 -refreshSuperUserGroupsConfiguration

hadoop配置在线刷新

原文：https://www.cnblogs.com/30go/p/15237698.html