Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/126#discussion_r11266501
--- Diff: core/src/main/scala/org/apache/spark/SparkEnv.scala ---
@@ -180,12 +180,24 @@ object SparkEnv extends Logging {
}
}
+ val mapOutputTracker = if (isDriver) {
+ new MapOutputTrackerMaster(conf)
--- End diff --
This whole thing is a little bit ugly (I realize it's not related to this
patch). Having this parent `MapOutputTracker` trait is kind of weird since
semantically interacting with the `MapOutputTracker` is different on the master
and slave. But anyways... we can fix this later.
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