cloud-fan commented on a change in pull request #24569: [SPARK-23191][CORE]
Warn rather than terminate when duplicate worker register happens
URL: https://github.com/apache/spark/pull/24569#discussion_r283738488
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File path: core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala
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@@ -393,12 +393,20 @@ private[deploy] class Worker(
private def handleRegisterResponse(msg: RegisterWorkerResponse): Unit =
synchronized {
msg match {
- case RegisteredWorker(masterRef, masterWebUiUrl, masterAddress) =>
- if (preferConfiguredMasterAddress) {
- logInfo("Successfully registered with master " +
masterAddress.toSparkURL)
- } else {
- logInfo("Successfully registered with master " +
masterRef.address.toSparkURL)
+ case RegisteredWorker(masterRef, masterWebUiUrl, masterAddress,
duplicate) =>
+ val preferredMasterAddress = {
+ if (preferConfiguredMasterAddress) {
+ masterAddress.toSparkURL
+ } else {
+ masterRef.address.toSparkURL
+ }
+ }
+
+ if (duplicate) {
+ logWarning(s"Duplicate registration at master
$preferredMasterAddress")
Review comment:
would be good to include the possible reasons for this case, so that end
users know what's going on.
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