Exception in thread "main" java.lang.IllegalArgumentException: Can't get Kerberos realm
at org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:65)
at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:306)
at org.apache.hadoop.security.UserGroupInformation.setConfiguration(UserGroupInformation.java:352)
at org.apache.spark.deploy.SparkHadoopUtil.<init>(SparkHadoopUtil.scala:50)
at org.apache.spark.deploy.SparkHadoopUtil$.instance$lzycompute(SparkHadoopUtil.scala:397)
at org.apache.spark.deploy.SparkHadoopUtil$.instance(SparkHadoopUtil.scala:397)
at org.apache.spark.deploy.SparkHadoopUtil$.get(SparkHadoopUtil.scala:418)
at org.apache.spark.executor.CoarseGrainedExecutorBackend$.run(CoarseGrainedExecutorBackend.scala:423)
at org.apache.spark.executor.YarnCoarseGrainedExecutorBackend$.main(YarnCoarseGrainedExecutorBackend.scala:81)
at org.apache.spark.executor.YarnCoarseGrainedExecutorBackend.main(YarnCoarseGrainedExecutorBackend.scala)
Caused by: java.lang.IllegalAccessException: class org.apache.hadoop.security.authentication.util.KerberosUtil cannot access class sun.security.krb5.Config (in module java.security.jgss) because module java.security.jgss does not export sun.security.krb5 to unnamed module @3a0baae5
at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:392)
at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:674)
at java.base/java.lang.reflect.Method.invoke(Method.java:560)
at org.apache.hadoop.security.authentication.util.KerberosUtil.getDefaultRealm(KerberosUtil.java:85)
at org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:63)
... 9 more