Github user markhamstra commented on a diff in the pull request:
https://github.com/apache/spark/pull/299#discussion_r11221304
--- Diff: conf/spark-env.sh.template ---
@@ -1,19 +1,36 @@
#!/usr/bin/env bash
-# This file contains environment variables required to run Spark. Copy it
as
-# spark-env.sh and edit that to configure Spark for your site.
-#
-# The following variables can be set in this file:
+# This file is sourced when running various Spark classes.
+# Copy it as spark-env.sh and edit that to configure Spark for your site.
--- End diff --
Example values for many or all of these options would be helpful.
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