dongjoon-hyun commented on code in PR #42710:
URL: https://github.com/apache/spark/pull/42710#discussion_r1308205461


##########
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/VolcanoFeatureStep.scala:
##########
@@ -46,7 +46,7 @@ private[spark] class VolcanoFeatureStep extends 
KubernetesDriverCustomFeatureCon
         "for executor.")
       return Seq.empty
     }
-    val client = new DefaultVolcanoClient
+    lazy val client = new DefaultVolcanoClient
     val template = kubernetesConf.getOption(POD_GROUP_TEMPLATE_FILE_KEY)
     val pg = template.map(client.podGroups.load(_).item).getOrElse(new 
PodGroup())

Review Comment:
   Thank you. Yes, that line is the only place indeed. Let me merge this and 
take another look at the rest of test cases of this suite.



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