Github user foxish commented on the issue:
https://github.com/apache/spark/pull/19717
I understand the concern here. I think we can guard against accidental use
in client mode to post a nicer error message. @liyinan926, how about testing if
`kubernetes.default.svc` is accessible? That's a sure tell that the executors
can connect to the driver - and if they cannot, we can warn that one shouldn't
try connecting in client mode yet.
@vanzin There has been some work on
https://github.com/apache-spark-on-k8s/spark/pull/456 towards client mode, but
we don't think it's ready for primetime, at least not for 2.3, but definintely
should be done in the 2.4 timeframe.
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