Github user LantaoJin commented on the issue:
https://github.com/apache/spark/pull/19933
I think you miss my point. Please image that I am an infra team member in a
company, and spark users are almost using spark sql or just offering an
application jar. What I want is get the submit host to help them to debug
environment issue or to control the spark version or to limit the submitting
hosts. And I cannot finger out where the bad apps submitted from if the user
didnât log it. Yes, I just need a read only info at beginning. So I ask if it
can be changed to a system property instread of spark conf. And why I finally
choose using a configuration is there is one situation that the submitting host
is not the original submitting host from user, it could be a platform server.
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