Github user gengliangwang commented on the issue: https://github.com/apache/spark/pull/23049 @vanzin I see your point. I will add a link to https://spark.apache.org/docs/latest/configuration.html. Thanks for the suggestion. In my case, I didn't know where to find or edit `spark-env.sh` at that time. I tried run `find . -name spark-env.sh` and got nothing. The script will only print `spark-env.sh` without its location only if SPARK_ENV_LOADED is not set.
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