Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/16871#discussion_r100284371
--- Diff: build/mvn ---
@@ -22,7 +22,7 @@ _DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
# Preserve the calling directory
_CALLING_DIR="$(pwd)"
# Options used during compilation
-_COMPILE_JVM_OPTS="-Xmx2g -XX:MaxPermSize=512M
-XX:ReservedCodeCacheSize=512m"
--- End diff --
It's still in Java 8. I actually removed this because I think it's defunct
and no longer needed, but I admit it's not strictly related to Java 8. I'd put
it back if anyone has doubts, but if nobody can recall what it's for (I've
never set it in dev or production) maybe it's removable now
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