Hi Aljoscha, Sorry for my late response . According to my experience ， if the flink-conf.yaml has set the "security.kerberos.login.keytab" and "security.kerberos.login.contexts" with a kerberos file then yarn will ship the keytab file to the TaskManager . Also i can find the log like: " INFO org.apache.flink.configuration.GlobalConfiguration - Loading configuration property: security.kerberos.login.keytab, /data1/yarn/nm/usercache/hadoop/appcache/application_1537515506704_0007/container_e28_1537515506704_0007_01_000001/krb5.keytab" in the TaskManager log. My problem is that in the user code like map or sink function how can i get the security.kerberos.login.keytab value for login .
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