srowen commented on a change in pull request #24188: [SPARK-27258][K8S]Add the
prefix 'spark-' for resourceNamePrefix that starts with number
URL: https://github.com/apache/spark/pull/24188#discussion_r268700112
##########
File path:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/KubernetesConf.scala
##########
@@ -78,7 +78,10 @@ private[spark] class KubernetesDriverConf(
override val resourceNamePrefix: String = {
val custom = if (Utils.isTesting) get(KUBERNETES_DRIVER_POD_NAME_PREFIX)
else None
- custom.getOrElse(KubernetesConf.getResourceNamePrefix(appName))
+ val resourceNamePrefix =
custom.getOrElse(KubernetesConf.getResourceNamePrefix(appName))
+ // If the first character of resourceNamePrefix is number,add the extra
prefix : "spark-".
+ val prefix = "spark-" + resourceNamePrefix.charAt(0)
+ resourceNamePrefix.replaceAll("^[0-9]", prefix)
Review comment:
Why not just prepend "spark-" if the first character is a digit? `if
(Character.isDigit(resourceNamePrefix(0)))`
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