Github user mccheah commented on a diff in the pull request:
https://github.com/apache/spark/pull/20669#discussion_r174328964
--- Diff:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/KubernetesClientApplication.scala
---
@@ -202,6 +221,10 @@ private[spark] class KubernetesClientApplication
extends SparkApplication {
val launchTime = System.currentTimeMillis()
val waitForAppCompletion = sparkConf.get(WAIT_FOR_APP_COMPLETION)
val appName = sparkConf.getOption("spark.app.name").getOrElse("spark")
+ val kubernetesResourceNamePrefix = {
+ val uuid =
UUID.nameUUIDFromBytes(Longs.toByteArray(launchTime)).toString.replaceAll("-",
"")
--- End diff --
Heh, UUIDs aren't great here because they tend to be very long. There's
lots of inconvenient name length restrictions in Kubernetes. That's why we were
just using the launch time before.
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