Github user liyinan926 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/22959#discussion_r234774586
  
    --- Diff: 
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/HadoopSparkUserExecutorFeatureStep.scala
 ---
    @@ -16,28 +16,19 @@
      */
     package org.apache.spark.deploy.k8s.features
     
    -import io.fabric8.kubernetes.api.model.HasMetadata
    -
    -import org.apache.spark.deploy.k8s.{KubernetesConf, SparkPod}
    +import org.apache.spark.deploy.k8s.{KubernetesExecutorConf, SparkPod}
     import org.apache.spark.deploy.k8s.Constants._
    -import org.apache.spark.deploy.k8s.KubernetesExecutorSpecificConf
     import org.apache.spark.deploy.k8s.features.hadooputils.HadoopBootstrapUtil
    -import org.apache.spark.internal.Logging
     
     /**
      * This step is responsible for setting ENV_SPARK_USER when HADOOP_FILES 
are detected
      * however, this step would not be run if Kerberos is enabled, as Kerberos 
sets SPARK_USER
      */
    -private[spark] class HadoopSparkUserExecutorFeatureStep(
    -    kubernetesConf: KubernetesConf[KubernetesExecutorSpecificConf])
    -  extends KubernetesFeatureConfigStep with Logging {
    +private[spark] class HadoopSparkUserExecutorFeatureStep(conf: 
KubernetesExecutorConf)
    +  extends KubernetesFeatureConfigStep {
     
       override def configurePod(pod: SparkPod): SparkPod = {
    -    val sparkUserName = 
kubernetesConf.sparkConf.get(KERBEROS_SPARK_USER_NAME)
    +    val sparkUserName = conf.sparkConf.get(KERBEROS_SPARK_USER_NAME)
    --- End diff --
    
    Ditto.


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