srowen commented on a change in pull request #24219: [SPARK-27258][K8S] The
first character of Service's name is digit,which does not match regular
expression [a-z]([-a-z0-9]*[a-z0-9])?)
URL: https://github.com/apache/spark/pull/24219#discussion_r269065021
##########
File path:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/DriverServiceFeatureStep.scala
##########
@@ -38,15 +38,21 @@ private[spark] class DriverServiceFeatureStep(
s"$DRIVER_HOST_KEY is not supported in Kubernetes mode, as the driver's
hostname will be " +
"managed via a Kubernetes service.")
+ def isDigit(char: Char) : Boolean = {
Review comment:
There's already a JDK method for this anyway, but this isn't the check you
want to make.
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