dongjoon-hyun commented on a change in pull request #35345:
URL: https://github.com/apache/spark/pull/35345#discussion_r797334641
##########
File path:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/KubernetesDriverBuilder.scala
##########
@@ -38,8 +40,27 @@ private[spark] class KubernetesDriverBuilder {
.getOrElse(SparkPod.initialPod())
val userFeatures = conf.get(Config.KUBERNETES_DRIVER_POD_FEATURE_STEPS)
- .map { className =>
-
Utils.classForName(className).newInstance().asInstanceOf[KubernetesFeatureConfigStep]
+ .map { className => {
+ val feature = Utils.classForName[Any](className).newInstance()
+ val initializedFeature = feature match {
+ // Since 3.3, allow user implements feature with KubernetesDriverConf
+ case d: KubernetesDriverCustomFeatureConfigStep =>
+ d.init(conf)
+ Some(d)
+ // raise SparkException with wrong type feature step
+ case _: KubernetesExecutorCustomFeatureConfigStep =>
+ None
+ // Since 3.2, allow user implements feature without config
+ case f: KubernetesFeatureConfigStep =>
+ Some(f)
+ case _ => None
+ }
+ initializedFeature.getOrElse {
+ logError(s"Failed to initialize feature step: $className, " +
+ s"please make sure your driver side feature steps are implemented
by " +
+ s"`KubernetesDriverCustomFeatureConfigStep` or
`KubernetesCustomFeatureConfigStep`.")
+ throw new SparkException(s"Failed to initialize feature step:
$className") }
+ }
Review comment:
indentation? It seems that `the bracket at the end of line 62` should
have its own line.
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