Github user mridulm commented on a diff in the pull request:
https://github.com/apache/spark/pull/228#discussion_r10953086
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -814,8 +819,12 @@ class DAGScheduler(
event.reason match {
case Success =>
logInfo("Completed " + task)
- if (event.accumUpdates != null) {
- Accumulators.add(event.accumUpdates) // TODO: do this only if
task wasn't resubmitted
+ if (!stageIdToAccumulators.contains(stage.id) ||
+ stageIdToAccumulators(stage.id).size < stage.numPartitions) {
+ stageIdToAccumulators.getOrElseUpdate(stage.id, new
ListBuffer[(Long, Any)])
+ for ((id, value) <- event.accumUpdates) {
+ stageIdToAccumulators(stage.id) += id -> value
--- End diff --
Maybe make value of stageIdToAccumulators a Map ?
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