Stavros Kontopoulos created SPARK-23790: -------------------------------------------
Summary: proxy-user failed connecting to a kerberos configured metastore Key: SPARK-23790 URL: https://issues.apache.org/jira/browse/SPARK-23790 Project: Spark Issue Type: Bug Components: Mesos Affects Versions: 2.3.0 Reporter: Stavros Kontopoulos This appeared at a customer trying to integrate with a kerberized hdfs cluster. This is easily fixed with the proposed fix here: [https://github.com/apache/spark/pull/17333] The other option is to add the delegation tokens to the current user's UGI as in here: [https://github.com/apache/spark/pull/17335]. The last fixes the problem but leads to a failure when someones uses a HadoopRDD because the latter FileInputFormat to get the splits which call the local ticket cache TokenCache.obtainTokensForNamenodes which will fail with: Exception in thread "main" org.apache.hadoop.ipc.RemoteException(java.io.IOException): Delegation Token can be issued only with kerberos or web authentication at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getDelegationToken(FSNamesystem.java:5896) This implies that security mode is SIMPLE and hadoop libs there are not aware of kerberos. This is related to this issue: https://issues.apache.org/jira/browse/MAPREDUCE-6876 -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org