krb5认证相关

import org.apache.hadoop.security.UserGroupInformation;


        //Kerberos认证
        if(hdfsProperties.isKerberosEnable()) {
            System.setProperty("java.security.krb5.conf", hdfsProperties.getKrb5());
            UserGroupInformation.setConfiguration(configuration);
            UserGroupInformation.loginUserFromKeytab(hdfsProperties.getPrincipal(), hdfsProperties.getKeytab());
        }

命令:

kinit -kt /home/hdfs.keytab hdfs