dongjoon-hyun commented on a change in pull request #27735:
URL: https://github.com/apache/spark/pull/27735#discussion_r517797112



##########
File path: 
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/KubernetesClusterSchedulerBackend.scala
##########
@@ -107,6 +118,11 @@ private[spark] class KubernetesClusterSchedulerBackend(
           .withLabel(SPARK_APP_ID_LABEL, applicationId())
           .withLabel(SPARK_ROLE_LABEL, SPARK_POD_EXECUTOR_ROLE)
           .delete()
+       kubernetesClient

Review comment:
       It seems that we can have a `configMap` leftover if the pod deletion 
fails. Could you do this configMap deletion in a new 
`Utils.tryLogNonFatalError` block?




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