Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/1309#discussion_r14695670
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -809,12 +810,24 @@ class DAGScheduler(
listenerBus.post(SparkListenerStageCompleted(stageToInfos(stage)))
runningStages -= stage
}
+
event.reason match {
case Success =>
logInfo("Completed " + task)
if (event.accumUpdates != null) {
// TODO: fail the stage if the accumulator update fails...
Accumulators.add(event.accumUpdates) // TODO: do this only if
task wasn't resubmitted
+ event.accumUpdates.foreach { case (id, partialValue) =>
+ val acc = Accumulators.originals(id)
+ val name = acc.name
+ // To avoid UI cruft, ignore cases where value wasn't updated
+ if (partialValue != acc.zero) {
+ val stringPartialValue = s"${partialValue}"
+ val stringValue = s"${acc.value}"
+ stageToInfos(stage).accumulatedValues(name) = stringValue
--- End diff --
Can you add a comment here saying that you update it incrementally (and not
just at the end) so the UI always shows the correct value (assuming that is the
reason)?
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