接口 org.apache.hadoop.security.RefreshUserMappingsProtocol
的使用

使用RefreshUserMappingsProtocol的程序包

程序包	说明
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.mapred	A software framework for easily writing applications which process vast amounts of data (multi-terabyte data-sets) parallelly on large clusters (thousands of nodes) built of commodity hardware in a reliable, fault-tolerant manner.

org.apache.hadoop.hdfs.server.namenode中RefreshUserMappingsProtocol的使用

实现RefreshUserMappingsProtocol的org.apache.hadoop.hdfs.server.namenode中的类

限定符和类型	类和说明
class	NameNode NameNode serves as both directory namespace manager and "inode table" for the Hadoop DFS.

org.apache.hadoop.mapred中RefreshUserMappingsProtocol的使用

实现RefreshUserMappingsProtocol的org.apache.hadoop.mapred中的类

限定符和类型	类和说明
class	JobTracker JobTracker is the central location for submitting and tracking MR jobs in a network environment.