Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/4864#discussion_r25658434
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/tree/model/DecisionTreeModel.scala
---
@@ -187,6 +188,25 @@ object DecisionTreeModel extends
Loader[DecisionTreeModel] {
val sqlContext = new SQLContext(sc)
import sqlContext.implicits._
+ // SPARK-6120: We do a hacky check here so users understand why
save() is failing
+ // when they run the ML guide example.
+ // TODO: Fix this issue for real.
+ val driverMemory = sc.getConf.getOption("spark.driver.memory")
--- End diff --
Move this into the the `if (sc.isLocal)` branch.
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