[SPARK-36321] Do not fail application in kubernetes if name is too long

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.1
• Component/s: Kubernetes
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: XiDuo You
• Created: 28/Jul/21 03:13
• Updated: 30/Sep/23 19:02
• Resolved: 30/Sep/23 19:02

Description

If we have a long spark app name and start with k8s master, we will get the execption.

java.lang.IllegalArgumentException: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-89fe2f7ae71c3570' in spark.kubernetes.executor.podNamePrefix is invalid. must conform https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#dns-label-names and the value length <= 47
	at org.apache.spark.internal.config.TypedConfigBuilder.$anonfun$checkValue$1(ConfigBuilder.scala:108)
	at org.apache.spark.internal.config.TypedConfigBuilder.$anonfun$transform$1(ConfigBuilder.scala:101)
	at scala.Option.map(Option.scala:230)
	at org.apache.spark.internal.config.OptionalConfigEntry.readFrom(ConfigEntry.scala:239)
	at org.apache.spark.internal.config.OptionalConfigEntry.readFrom(ConfigEntry.scala:214)
	at org.apache.spark.SparkConf.get(SparkConf.scala:261)
	at org.apache.spark.deploy.k8s.KubernetesConf.get(KubernetesConf.scala:67)
	at org.apache.spark.deploy.k8s.KubernetesExecutorConf.<init>(KubernetesConf.scala:147)
	at org.apache.spark.deploy.k8s.KubernetesConf$.createExecutorConf(KubernetesConf.scala:231)
	at org.apache.spark.scheduler.cluster.k8s.ExecutorPodsAllocator.$anonfun$requestNewExecutors$2(ExecutorPodsAllocator.scala:367)

Use app name as the executor pod name is the Spark internal behavior and we should not make application failure.

Issue Links

• duplicates: SPARK-39614 K8s pod name follows `DNS Subdomain Names` rule
• links to: [Github] Pull Request #33550 (ulysses-you)
• links to: GitHub Pull Request #33550