Fix bug in SizeTracking*

We were not incorporating the delta in sizes, because Seq does not match the case a :: b :: c, while List does. This was originally reported by @mateiz.
xiliu82 · Jul 18, 2014 · 2b7ee66 · 2b7ee66
1 parent 9b9a273
commit 2b7ee66
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/core/src/main/scala/org/apache/spark/util/collection/SizeTracker.scala b/core/src/main/scala/org/apache/spark/util/collection/SizeTracker.scala
@@ -80,7 +80,7 @@ private[spark] trait SizeTracker {
     if (samples.size > 2) {
       samples.remove(0)
     }
-    val bytesDelta = samples.toSeq.reverse match {
+    val bytesDelta = samples.toList.reverse match {
       case latest :: previous :: tail =>
         (latest.size - previous.size).toDouble / (latest.numUpdates - previous.numUpdates)
       // If fewer than 2 samples, assume no change