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Sunil G commented on YARN-8236: ------------------------------- Thanks [~shaneku...@gmail.com] Its interesting {code:java} "kerberos_principal" : { "principal_name" : "ambari...@example.com", "keytab" : "/etc/security/keytabs/smokeuser.headless.keytab" } {code} I missed giving "file://" prefix to keytab. After giving the same, its working. However i still thinks, we should not get an NPE on same error condition. Seems like the line in {{ServiceClient.addKeytabResourceIfSecure}} *switch (keytabURI.getScheme())* is causing the NPE. > Invalid kerberos principal file name cause NPE in native service > ---------------------------------------------------------------- > > Key: YARN-8236 > URL: https://issues.apache.org/jira/browse/YARN-8236 > Project: Hadoop YARN > Issue Type: Bug > Components: yarn-native-services > Affects Versions: 3.1.0 > Reporter: Sunil G > Priority: Major > > Stack trace > > {code:java} > 2018-04-29 16:22:54,266 WARN webapp.GenericExceptionHandler > (GenericExceptionHandler.java:toResponse(98)) - INTERNAL_SERVER_ERROR > java.lang.NullPointerException > at > org.apache.hadoop.yarn.service.client.ServiceClient.addKeytabResourceIfSecure(ServiceClient.java:994) > at > org.apache.hadoop.yarn.service.client.ServiceClient.submitApp(ServiceClient.java:685) > at > org.apache.hadoop.yarn.service.client.ServiceClient.actionCreate(ServiceClient.java:269){code} > cc [~gsaha] [~csingh] -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org