Github user themodernlife commented on the issue:
https://github.com/apache/spark/pull/17530
That would work for cluster mode but in client mode the driver on the
submitting nodes still needs the keytab unfortunately.
Standalone clusters are best viewed as distributed single-user programs, so
I think the real mistake is not bringing them into a secure environment, but
bringing them into a secure environment and trying to use them in a
multi-tenant/multi-user fashion.
I can see the concern that this feature might give someone who brings
standalone clusters into a kerberized environment a false sense of security.
What about disabling unless something like `spark.standalone.single-user` is
set to true?
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