Github user justinuang commented on a diff in the pull request:
https://github.com/apache/spark/pull/8318#discussion_r37570377
--- Diff: python/pyspark/__init__.py ---
@@ -36,6 +36,31 @@
Finer-grained cache persistence levels.
"""
+import os
+import sys
+
+import xml.etree.ElementTree as ET
+
+if (os.environ.get("SPARK_HOME", "not found") == "not found"):
--- End diff --
I don't really understand this part of the code, so it would be nice to get
some core devs to chime in, but it looks like
./core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
does a lot of logic, especially when deploying against YARN that seems
important.
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