Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/1416#discussion_r46820392
--- Diff:
flink-yarn/src/main/scala/org/apache/flink/yarn/ApplicationMasterBase.scala ---
@@ -120,16 +122,73 @@ abstract class ApplicationMasterBase {
config.setInteger(ConfigConstants.JOB_MANAGER_WEB_PORT_KEY, 0);
}
- val (actorSystem, jmActor, archiveActor, webMonitor) =
- JobManager.startActorSystemAndJobManagerActors(
- config,
- JobManagerMode.CLUSTER,
- streamingMode,
- ownHostname,
- 0,
- getJobManagerClass,
- getArchivistClass
- )
+ // we try to start the JobManager actor system using the port
definition
+ // from the config.
+ // first, we check if the port is available by opening a socket
+ // if the actor system fails to start on the port, we try further
+ val amPortRange: String =
config.getString(ConfigConstants.YARN_APPLICATION_MASTER_PORT,
+ ConfigConstants.DEFAULT_YARN_APPLICATION_MASTER_PORT)
+ val portsSet = NetUtils.getPortRangeFromString(amPortRange)
+
+ // Try to start the actor system with the given set of ports:
+ var startActorResultOption: Option[(ActorSystem, ActorRef, ActorRef,
Option[WebMonitor])] =
+ None
+
+ while (startActorResultOption.isEmpty && portsSet.size() > 0) {
--- End diff --
Why is the `portsSet.size() > 0` condition included in the while loop
condition. Does it change over time?
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