Github user ScrapCodes commented on a diff in the pull request:
https://github.com/apache/spark/pull/4512#discussion_r24473919
--- Diff: core/src/main/scala/org/apache/spark/util/AkkaUtils.scala ---
@@ -106,7 +104,6 @@ private[spark] object AkkaUtils extends Logging {
|akka.remote.secure-cookie = "$secureCookie"
|akka.remote.transport-failure-detector.heartbeat-interval =
$akkaHeartBeatInterval s
|akka.remote.transport-failure-detector.acceptable-heartbeat-pause =
$akkaHeartBeatPauses s
- |akka.remote.transport-failure-detector.threshold =
$akkaFailureDetector
--- End diff --
Failure detector threshold was set to a high value to disable it. Since
there is not property in akka that let's us do that more idiomatically. By
removing the above line we are simply asking akka to pick up default which is
very low and will cause workers to disassociate during GC pauses.
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