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

["XiDuo You (Jira)" <ji...@apache.org>]

XiDuo You created SPARK-36321:
---------------------------------

             Summary: Do not fail application in kubernetes if name is too long
                 Key: SPARK-36321
                 URL: https://issues.apache.org/jira/browse/SPARK-36321
             Project: Spark
          Issue Type: Bug
          Components: Kubernetes
    Affects Versions: 3.3.0
            Reporter: XiDuo You


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

{code:java}
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)
{code}

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



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