fs.defaultFS hdfs://hadoop01.esrichina.com:9000 hadoop.security.authorization true Set the authentication for the cluster.Valid values are: simple or kerberos. hadoop.security.authentication kerberos Enable authentication for different protocols. hadoop.security.auth_to_local RULE:[2:$1@$0](nn/.*@.*ESRICHINA.COM)s/.*/hdfs/ RULE:[2:$1@$0](sn/.*@.*ESRICHINA.COM)s/.*/hdfs/ RULE:[2:$1@$0](dn/.*@.*ESRICHINA.COM)s/.*/hdfs/ RULE:[2:$1@$0](nm/.*@.*ESRICHINA.COM)s/.*/yarn/ RULE:[2:$1@$0](rm/.*@.*ESRICHINA.COM)s/.*/yarn/ RULE:[2:$1@$0](tl/.*@.*ESRICHINA.COM)s/.*/yarn/ RULE:[2:$1@$0](jhs/.*@.*ESRICHINA.COM)s/.*/mapred/ RULE:[2:$1@$0](HTTP/.*@.*ESRICHINA.COM)s/.*/hdfs/ DEFAULT The mapping from kerberos principal names to local OS user names.