Yikun edited a comment on pull request #35359:
URL: https://github.com/apache/spark/pull/35359#issuecomment-1024814048


   @dongjoon-hyun Thanks ping me. 
   
   > I don't think that the verbose revert commit and redo commit is necessary.
   
   We only need to revert commit, **redo commit is NOT needed**, 
   
   First reason, we don't need the oringal PR (set configmap.metadata.namespace 
explictly), see validation in 
https://github.com/apache/spark/pull/35299#issuecomment-1019972817. And the 
original issue [SPARK-37713](https://issues.apache.org/jira/browse/SPARK-37713) 
should be marked as invalid I guess (might let @dcoliversun confirm it).
   
   Second reason, and also the [current namespace set 
way](https://github.com/apache/spark/blob/master/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/KubernetesClientUtils.scala#L93)
 break a special case like below(we shouldn't occupy any pontential data.key 
allowed by k8s in confFileMap):
   ```
   apiVersion: v1
   kind: ConfigMap
   metadata:
     name: configmap-test
     # This is metadata.namespace, the namespace of configMap
     namespace:  non-default
   data:
     # This is user specified `namespace` file, fill up in configFileMap
     spark.kubernetes.namespace:
       foo=bar
   ```
   
   So, I still think the revert might be needed due to above 2 reasons.


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