[SPARK-12637][CORE] Print stage info of finished stages properly

Improve printing of StageInfo in onStageCompleted

See also #10585

Author: Sean Owen <sowen@cloudera.com>

Closes #10922 from srowen/SPARK-12637.

core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala

@@ -270,7 +270,7 @@ class StatsReportListener extends SparkListener with Logging {
 
   override def onStageCompleted(stageCompleted: SparkListenerStageCompleted) {
     implicit val sc = stageCompleted
-    this.logInfo("Finished stage: " + stageCompleted.stageInfo)
+    this.logInfo(s"Finished stage: ${getStatusDetail(stageCompleted.stageInfo)}")
     showMillisDistribution("task runtime:", (info, _) => Some(info.duration), taskInfoMetrics)
 
     // Shuffle write
@@ -297,6 +297,17 @@ class StatsReportListener extends SparkListener with Logging {
     taskInfoMetrics.clear()
   }
 
+  private def getStatusDetail(info: StageInfo): String = {
+    val failureReason = info.failureReason.map("(" + _ + ")").getOrElse("")
+    val timeTaken = info.submissionTime.map(
+      x => info.completionTime.getOrElse(System.currentTimeMillis()) - x
+    ).getOrElse("-")
+
+    s"Stage(${info.stageId}, ${info.attemptId}); Name: '${info.name}'; " +
+    s"Status: ${info.getStatusString}$failureReason; numTasks: ${info.numTasks}; " +
+    s"Took: $timeTaken msec"
+  }
+
 }
 
 private[spark] object StatsReportListener extends Logging {