Flink security context gets initialized during the application start phase. As part of the initialization, the UserGroupInformation (UGI) instance is bootstrapped using the Hadoop configuration files (read: HADOOP_CONF_DIR or YARN_CONF_DIR environment variable is set). If the hadoop configuration (core-site) enables security, then the UGI context uses JAAS module to load/login through Kerberos. Looks like in this case, the Hadoop configurations that got loaded somehow has the security enabled and UGI is trying to obtain the identity using keytab cache.
-- View this message in context: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Flink-using-Yarn-on-MapR-tp14484p14496.html Sent from the Apache Flink Mailing List archive. mailing list archive at Nabble.com.
