Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/299#discussion_r11567194
--- Diff:
yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ClientBase.scala ---
@@ -340,8 +341,22 @@ trait ClientBase extends Logging {
JAVA_OPTS += " -XX:CMSIncrementalDutyCycle=10 "
}
- if (env.isDefinedAt("SPARK_JAVA_OPTS")) {
- JAVA_OPTS += " " + env("SPARK_JAVA_OPTS")
+
--- End diff --
Thinking a bit more, we have two options here:
(a) make a backwards incompatible change here and people have to re-write
there jobs
(b) continue supporting shipping SPARK_JAVA_OPTS from the driver to the
executors for the entire 1.X family of Spark releases (e.g probably years).
I guess we can do (a) but I might give a loud error message here so that
users change this.
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