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From pwendell <>
Subject [GitHub] spark pull request: [WIP] [SPARK-1132] Persisting Web UI through r...
Date Tue, 04 Mar 2014 20:17:46 GMT
Github user pwendell commented on a diff in the pull request:
    --- Diff: core/src/main/scala/org/apache/spark/ui/SparkUI.scala ---
    @@ -17,38 +17,80 @@
     package org.apache.spark.ui
    +import{FileInputStream, File}
     import org.eclipse.jetty.server.{Handler, Server}
    +import org.json4s.jackson.JsonMethods._
     import org.apache.spark.{Logging, SparkContext, SparkEnv}
    +import org.apache.spark.scheduler._
     import org.apache.spark.ui.JettyUtils._
     import org.apache.spark.ui.env.EnvironmentUI
     import org.apache.spark.ui.exec.ExecutorsUI
     import org.apache.spark.util.Utils
    +import org.apache.spark.util.JsonProtocol
    -/** Top level user interface for Spark */
    -private[spark] class SparkUI(sc: SparkContext) extends Logging {
    +/** Top level user interface for Spark. */
    +private[spark] class SparkUI(val sc: SparkContext) extends Logging {
    --- End diff --
    I'm just saying it would be better to keep this ugliness internal and have the public
constructor take an `Option[SparkContext]`. Then you could have something like this:
    val live = sc.isDefined
    // Only valid if live
    def _sc = sc.get
    Would that work?

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