Github user tgravescs commented on the issue:
https://github.com/apache/spark/pull/15869
- spark.driver.memory and spark.executor.memory is good to remove from yarn
side as its duplicate since they were added for others.
spark.driver.cores and spark.executor.cores could also be removed from yarn
config docs as they are in the general ones now too.
- spark.executor.instances is still only used in YARN. --num-executors is
also YARN only. I'm not sure the exact behavior of
spark.dynamicAllocation.initialExecutors on mesos or standalone mode to know if
the description for that should be updated for those.
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