Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/615#discussion_r12218870
--- Diff: core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala
---
@@ -83,7 +83,8 @@ private[spark] class Worker(
@volatile var registered = false
@volatile var connected = false
val workerId = generateWorkerId()
- val sparkHome = new
File(Option(System.getenv("SPARK_HOME")).getOrElse("."))
+ val sparkHome = new File(conf.getOption("spark.home").orElse(Option(
--- End diff --
Just wondering, could you describe the use case where you want to set this
via a Spark property and not by setting `SPARK_HOME` on the cluster?
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