Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/762#discussion_r12621155
--- Diff: core/src/main/scala/org/apache/spark/scheduler/Pool.scala ---
@@ -35,18 +37,15 @@ private[spark] class Pool(
extends Schedulable
with Logging {
- var schedulableQueue = new ArrayBuffer[Schedulable]
- var schedulableNameToSchedulable = new HashMap[String, Schedulable]
-
+ val schedulableQueue = new LinkedBlockingQueue[Schedulable]
--- End diff --
nit: ConurrentLinkedQueue is a more suitable data structure for this type
of access -- it provides a very efficient linked list, and it uses "add()"
instead of "offer()". Also no blocking stuff.
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