dongjoon-hyun opened a new pull request #29981:
URL: https://github.com/apache/spark/pull/29981


   ### What changes were proposed in this pull request?
   
   This PR aims to protect the executor pod request or pending pod during 
executor idle timeout.
   
   ### Why are the changes needed?
   
   In case of dynamic allocation, Apache Spark K8s `ExecutorPodsAllocator` 
cancels the pod request or pending pod too eagerly. This PR is reusing 
`spark.dynamicAllocation.executorIdleTimeout (default: 60s)` to keep the pod 
request or pending pod.
   
   ### Does this PR introduce _any_ user-facing change?
   
   No.
   
   ### How was this patch tested?
   
   Pass the newly added test case.


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