Hadoop’s hadoop.security.auth_to_local rules
Hadoop provides a feature that lets administrators specify mapping rules to map a kerberos principal to a local UNIX user name.This required with Kerberized Hadoop clusters to turn full UPN’s into the shortnames required by the HDFS services. In Ambari these rules look similar to this and are added to the core-site.xml: Kerberized Ambari […]
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