Overriding parameters

Hello team, One quick question.

I read somewhere in the doc - Order of priority

Value set up in spark-submit overrides value set up in code overrides value set up in .conf

Is this correct understanding? If so, we may have problem.

I was trying to set spark.kubernetes.namespace. I had used default in code but wanted to override in submit-submit. Application kept failing. Finally I had to remove from code to make it work.

Same for some other kubernetes setups like PersistentVolume set up.