Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/4343#discussion_r24040441
--- Diff: core/src/test/scala/org/apache/spark/util/AkkaUtilsSuite.scala ---
@@ -371,7 +371,7 @@ class AkkaUtilsSuite extends FunSuite with
LocalSparkContext with ResetSystemPro
AkkaUtils.address(AkkaUtils.protocol(slaveSystem), "spark",
"localhost", boundPort, "MapOutputTracker"))
val timeout = AkkaUtils.lookupTimeout(conf)
intercept[TimeoutException] {
- slaveTracker.trackerActor =
Await.result(selection.resolveOne(timeout), timeout)
+ slaveTracker.trackerActor =
Await.result(selection.resolveOne(timeout * 2), timeout)
--- End diff --
Could you explain the the PR's comment (= the commit message) how
increasing a timeout fixes a race condition, instead of just making it less
likely?
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