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clustering example fails with SBT 1.6.2 #268

Open bwbecker opened 2 years ago

bwbecker commented 2 years ago

I downloaded the akka-sample-cluster-scala example from https://developer.lightbend.com/start/?group=akka&project=akka-samples-cluster-scala. Issued the sbt "runMain sample.cluster.simple.App" command per the readme file. It

I changed sbt.version=1.5.6 to sbt.version=1.6.2 in build.properties to match other projects I have. I then reran the above command.

Output from the first (working) run, below, followed by the output from the second run.

Pointers on how to use more recent versions of SBT would be appreciated.

Thanks! Byron

Output from a working run

bwbecker@beta-2 akka-samples-cluster-scala % sbt "runMain sample.cluster.simple.App"
[info] [launcher] getting Scala 2.12.14 (for sbt)...
[info] [launcher] getting org.scala-sbt sbt 1.5.6  (this may take some time)...
[info] welcome to sbt 1.5.6 (Homebrew Java 11.0.12)
[info] loading settings for project global-plugins from plugins.sbt ...
[info] loading global plugins from /Users/bwbecker/.sbt/1.0/plugins
[info] loading settings for project akka-samples-cluster-scala-build from plugins.sbt ...
[info] loading project definition from /Users/bwbecker/uw/scala/akka-samples-cluster-scala/project
[info] loading settings for project akka-sample-cluster-scala from build.sbt ...
[info] set current project to akka-sample-cluster-scala (in build file:/Users/bwbecker/uw/scala/akka-samples-cluster-scala/)
[info] compiling 11 Scala sources to /Users/bwbecker/uw/scala/akka-samples-cluster-scala/target/scala-2.13/classes ...
[info] Non-compiled module 'compiler-bridge_2.13' for Scala 2.13.5. Compiling...
[info]   Compilation completed in 4.871s.
[warn] /Users/bwbecker/uw/scala/akka-samples-cluster-scala/src/main/scala/sample/cluster/stats/StatsWorker.scala:33:30: match may not be exhaustive.
[warn] It would fail on the following input: (x: sample.cluster.stats.StatsWorker.Command forSome x not in (EvictCache, sample.cluster.stats.StatsWorker.Process))
[warn]     Behaviors.receiveMessage {
[warn]                              ^
[warn] /Users/bwbecker/uw/scala/akka-samples-cluster-scala/src/main/scala/sample/cluster/transformation/Frontend.scala:27:74: match may not be exhaustive.
[warn]       val subscriptionAdapter = ctx.messageAdapter[Receptionist.Listing] {
[warn]                                                                          ^
[warn] two warnings found
[warn] Compile / run / javaOptions will be ignored, Compile / run / fork is set to false
[info] running sample.cluster.simple.App 
SLF4J: A number (1) of logging calls during the initialization phase have been intercepted and are
SLF4J: now being replayed. These are subject to the filtering rules of the underlying logging system.
SLF4J: See also http://www.slf4j.org/codes.html#replay
[2022-08-08 15:25:20,826] [INFO] [akka.event.slf4j.Slf4jLogger] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Slf4jLogger started
[2022-08-08 15:25:21,026] [INFO] [akka.remote.artery.ArteryTransport] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Remoting started with transport [Artery tcp]; listening on address [akka://ClusterSystem@127.0.0.1:25251] with UID [-2532108422786354715]
[2022-08-08 15:25:21,038] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Starting up, Akka version [2.6.19] ...
[2022-08-08 15:25:21,106] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Registered cluster JMX MBean [akka:type=Cluster]
[2022-08-08 15:25:21,106] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Started up successfully
[2022-08-08 15:25:21,124] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-6] - SBR started. Config: strategy [KeepMajority], stable-after [20 seconds], down-all-when-unstable [15 seconds], selfUniqueAddress [akka://ClusterSystem@127.0.0.1:25251#-2532108422786354715], selfDc [default].
[2022-08-08 15:25:21,353] [INFO] [akka.event.slf4j.Slf4jLogger] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Slf4jLogger started
[2022-08-08 15:25:21,363] [INFO] [akka.remote.artery.ArteryTransport] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Remoting started with transport [Artery tcp]; listening on address [akka://ClusterSystem@127.0.0.1:25252] with UID [8036280626889104869]
[2022-08-08 15:25:21,364] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Starting up, Akka version [2.6.19] ...
[2022-08-08 15:25:21,367] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Could not register Cluster JMX MBean with name=akka:type=Cluster as it is already registered. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:25:21,367] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Started up successfully
[2022-08-08 15:25:21,368] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-3] - SBR started. Config: strategy [KeepMajority], stable-after [20 seconds], down-all-when-unstable [15 seconds], selfUniqueAddress [akka://ClusterSystem@127.0.0.1:25252#8036280626889104869], selfDc [default].
[2022-08-08 15:25:21,387] [INFO] [akka.event.slf4j.Slf4jLogger] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Slf4jLogger started
[2022-08-08 15:25:21,396] [INFO] [akka.remote.artery.ArteryTransport] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Remoting started with transport [Artery tcp]; listening on address [akka://ClusterSystem@127.0.0.1:52120] with UID [-2420097059347160158]
[2022-08-08 15:25:21,396] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Starting up, Akka version [2.6.19] ...
[2022-08-08 15:25:21,398] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Could not register Cluster JMX MBean with name=akka:type=Cluster as it is already registered. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:25:21,398] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Started up successfully
[2022-08-08 15:25:21,400] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-3] - SBR started. Config: strategy [KeepMajority], stable-after [20 seconds], down-all-when-unstable [15 seconds], selfUniqueAddress [akka://ClusterSystem@127.0.0.1:52120#-2420097059347160158], selfDc [default].
[2022-08-08 15:25:21,439] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123]], but this node is not initialized yet
[2022-08-08 15:25:21,439] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123]], but this node is not initialized yet
[2022-08-08 15:25:21,439] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon/joinSeedNodeProcess-1#-1662856400]], but this node is not initialized yet
[2022-08-08 15:25:21,439] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:25251/system/cluster/core/daemon/firstSeedNodeProcess-1#743675420]], but this node is not initialized yet
[2022-08-08 15:25:21,442] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoinNack message from [Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon#-2046472839]] to [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:25:21,447] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Node [akka://ClusterSystem@127.0.0.1:25251] is JOINING itself (with roles [dc-default], version [0.0.0]) and forming new cluster
[2022-08-08 15:25:21,448] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - is the new leader among reachable nodes (more leaders may exist)
[2022-08-08 15:25:21,451] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:25251] to [Up]
[2022-08-08 15:25:21,454] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Up: akka://ClusterSystem@127.0.0.1:25251
[2022-08-08 15:25:21,455] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-24] - This node is now the leader responsible for taking SBR decisions among the reachable nodes (more leaders may exist).
[2022-08-08 15:25:26,461] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon/joinSeedNodeProcess-1#-1662856400]] to [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:25:26,461] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Sending InitJoinAck message from node [akka://ClusterSystem@127.0.0.1:25251] to [Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon/joinSeedNodeProcess-1#-1662856400]] (version [2.6.19])
[2022-08-08 15:25:26,463] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123]], but this node is not initialized yet
[2022-08-08 15:25:26,492] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123]] to [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:25:26,492] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Sending InitJoinAck message from node [akka://ClusterSystem@127.0.0.1:25251] to [Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123]] (version [2.6.19])
[2022-08-08 15:25:26,499] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Received InitJoinAck message from [Actor[akka://ClusterSystem@127.0.0.1:25251/system/cluster/core/daemon#1082437671]] to [akka://ClusterSystem@127.0.0.1:25252]
[2022-08-08 15:25:26,504] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Received InitJoinAck message from [Actor[akka://ClusterSystem@127.0.0.1:25251/system/cluster/core/daemon#1082437671]] to [akka://ClusterSystem@127.0.0.1:52120]
[2022-08-08 15:25:26,508] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Node [akka://ClusterSystem@127.0.0.1:52120] is JOINING, roles [dc-default], version [0.0.0]
[2022-08-08 15:25:26,508] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Node [akka://ClusterSystem@127.0.0.1:25252] is JOINING, roles [dc-default], version [0.0.0]
[2022-08-08 15:25:26,549] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Welcome from [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:25:26,549] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Welcome from [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:25:26,549] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Member is Up: akka://ClusterSystem@127.0.0.1:25251
[2022-08-08 15:25:26,550] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Member is Up: akka://ClusterSystem@127.0.0.1:25251
[2022-08-08 15:25:27,240] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:25252] to [Up]
[2022-08-08 15:25:27,240] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:52120] to [Up]
[2022-08-08 15:25:27,241] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-25] - Member is Up: akka://ClusterSystem@127.0.0.1:25252
[2022-08-08 15:25:27,241] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-25] - Member is Up: akka://ClusterSystem@127.0.0.1:52120
[2022-08-08 15:25:27,251] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-32] - Member is Up: akka://ClusterSystem@127.0.0.1:25252
[2022-08-08 15:25:27,252] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-32] - Member is Up: akka://ClusterSystem@127.0.0.1:52120
[2022-08-08 15:25:27,490] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Member is Up: akka://ClusterSystem@127.0.0.1:25252
[2022-08-08 15:25:27,490] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Member is Up: akka://ClusterSystem@127.0.0.1:52120
[2022-08-08 15:25:31,515] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-15] - Message [akka.actor.ReceiveTimeout$] to Actor[akka://ClusterSystem/system/cluster/core/daemon/joinSeedNodeProcess-1#-1662856400] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon/joinSeedNodeProcess-1#-1662856400] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:25:31,518] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-32] - Message [akka.actor.ReceiveTimeout$] to Actor[akka://ClusterSystem/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon/joinSeedNodeProcess-1#1386252123] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.

BWB note: ^C to shut down sbt
^C
[2022-08-08 15:26:28,979] [INFO] [akka.actor.CoordinatedShutdown] [] [ClusterSystem-akka.actor.default-dispatcher-25] - Running CoordinatedShutdown with reason [JvmExitReason]
[2022-08-08 15:26:28,980] [INFO] [akka.actor.CoordinatedShutdown] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Running CoordinatedShutdown with reason [JvmExitReason]
[2022-08-08 15:26:28,980] [INFO] [akka.actor.CoordinatedShutdown] [] [ClusterSystem-akka.actor.default-dispatcher-33] - Running CoordinatedShutdown with reason [JvmExitReason]
[2022-08-08 15:26:28,991] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-33] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Marked address [akka://ClusterSystem@127.0.0.1:52120] as [Leaving]
[2022-08-08 15:26:28,991] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-25] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Marked address [akka://ClusterSystem@127.0.0.1:25251] as [Leaving]
[2022-08-08 15:26:28,991] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-15] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Marked address [akka://ClusterSystem@127.0.0.1:25252] as [Leaving]
[2022-08-08 15:26:29,452] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:25251] to [Exiting]
[2022-08-08 15:26:29,452] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:25252] to [Exiting]
[2022-08-08 15:26:29,452] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:52120] to [Exiting]
[2022-08-08 15:26:29,455] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Exiting completed
[2022-08-08 15:26:29,457] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Exiting completed
[2022-08-08 15:26:29,457] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Shutting down...
[2022-08-08 15:26:29,458] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Shutting down...
[2022-08-08 15:26:29,459] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-6] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Successfully shut down
[2022-08-08 15:26:29,459] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-30] - Could not unregister Cluster JMX MBean with name=akka:type=Cluster as it was not found. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:26:29,459] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-30] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Successfully shut down
[2022-08-08 15:26:29,460] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Exiting completed
[2022-08-08 15:26:29,461] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-30] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Exiting confirmed [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:26:29,463] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-32] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Shutting down...
[2022-08-08 15:26:29,463] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-32] - Could not unregister Cluster JMX MBean with name=akka:type=Cluster as it was not found. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:26:29,463] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-32] - Cluster Node [akka://ClusterSystem@127.0.0.1:52120] - Successfully shut down
[2022-08-08 15:26:29,463] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Exiting confirmed [akka://ClusterSystem@127.0.0.1:25252]
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:25251 after Exiting
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:25251 after Exiting
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:25252 after Exiting
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:25252 after Exiting
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:52120 after Exiting
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:52120 after Exiting
[2022-08-08 15:26:29,465] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:25251 after Exiting
[2022-08-08 15:26:29,466] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Member is Removed: akka://ClusterSystem@127.0.0.1:25252 after Exiting
[2022-08-08 15:26:29,466] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Member is Removed: akka://ClusterSystem@127.0.0.1:52120 after Exiting
[2022-08-08 15:26:29,469] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-30] - Message [akka.cluster.GossipEnvelope] from Actor[akka://ClusterSystem@127.0.0.1:25251/system/cluster/core/daemon#1082437671] to Actor[akka://ClusterSystem/system/cluster/core/daemon#-2046472839] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon#-2046472839] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:26:29,469] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-6] - Message [akka.cluster.GossipEnvelope] from Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon#1597450965] to Actor[akka://ClusterSystem/system/cluster/core/daemon#1082437671] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon#1082437671] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:26:29,469] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-30] - Message [akka.cluster.GossipEnvelope] from Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon#1597450965] to Actor[akka://ClusterSystem/system/cluster/core/daemon#-2046472839] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon#-2046472839] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:26:29,469] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-6] - Message [akka.cluster.GossipEnvelope] from Actor[akka://ClusterSystem@127.0.0.1:52120/system/cluster/core/daemon#1597450965] to Actor[akka://ClusterSystem/system/cluster/core/daemon#1082437671] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon#1082437671] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:26:29,469] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-6] - Message [akka.cluster.GossipEnvelope] from Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon#-2046472839] to Actor[akka://ClusterSystem/system/cluster/core/daemon#1082437671] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon#1082437671] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:26:29,469] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-32] - Message [akka.cluster.GossipEnvelope] from Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon#-2046472839] to Actor[akka://ClusterSystem/system/cluster/core/daemon#1597450965] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[akka://ClusterSystem/system/cluster/core/daemon#1597450965] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:26:29,471] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-33] - Shutting down remote daemon.
[2022-08-08 15:26:29,471] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-25] - Shutting down remote daemon.
[2022-08-08 15:26:29,471] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-30] - Shutting down remote daemon.
[2022-08-08 15:26:29,472] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-33] - Remote daemon shut down; proceeding with flushing remote transports.
[2022-08-08 15:26:29,472] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-30] - Remote daemon shut down; proceeding with flushing remote transports.
[2022-08-08 15:26:29,472] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-25] - Remote daemon shut down; proceeding with flushing remote transports.
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-33] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-33] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25252], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-33] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-25] - [outbound connection to [akka://ClusterSystem@127.0.0.1:52120], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-33] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25252], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-25] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25252], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-25] - [outbound connection to [akka://ClusterSystem@127.0.0.1:52120], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,489] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-25] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25252], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,490] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-30] - [outbound connection to [akka://ClusterSystem@127.0.0.1:52120], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,490] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-30] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,490] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-30] - [outbound connection to [akka://ClusterSystem@127.0.0.1:52120], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,490] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-30] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:26:29,494] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-25] - Remoting shut down.
[2022-08-08 15:26:29,494] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-33] - Remoting shut down.
[2022-08-08 15:26:29,494] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-30] - Remoting shut down.
bwbecker@beta-2 akka-samples-cluster-scala %

Output from the non-working run:

bwbecker@beta-2 akka-samples-cluster-scala % sbt "runMain sample.cluster.simple.App"
[info] welcome to sbt 1.6.2 (Homebrew Java 11.0.12)
[info] loading settings for project global-plugins from plugins.sbt ...
[info] loading global plugins from /Users/bwbecker/.sbt/1.0/plugins
[info] loading settings for project akka-samples-cluster-scala-build from plugins.sbt ...
[info] loading project definition from /Users/bwbecker/uw/scala/akka-samples-cluster-scala/project
[info] loading settings for project akka-sample-cluster-scala from build.sbt ...
[info] set current project to akka-sample-cluster-scala (in build file:/Users/bwbecker/uw/scala/akka-samples-cluster-scala/)
[warn] Compile / run / javaOptions will be ignored, Compile / run / fork is set to false
[info] running sample.cluster.simple.App 
SLF4J: A number (1) of logging calls during the initialization phase have been intercepted and are
SLF4J: now being replayed. These are subject to the filtering rules of the underlying logging system.
SLF4J: See also http://www.slf4j.org/codes.html#replay
[2022-08-08 15:37:57,923] [INFO] [akka.event.slf4j.Slf4jLogger] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Slf4jLogger started
[2022-08-08 15:37:58,114] [INFO] [akka.remote.artery.ArteryTransport] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Remoting started with transport [Artery tcp]; listening on address [akka://ClusterSystem@127.0.0.1:25251] with UID [3564205239811251040]
[2022-08-08 15:37:58,123] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Starting up, Akka version [2.6.19] ...
[2022-08-08 15:37:58,174] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Registered cluster JMX MBean [akka:type=Cluster]
[2022-08-08 15:37:58,174] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Started up successfully
[2022-08-08 15:37:58,191] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-5] - SBR started. Config: strategy [KeepMajority], stable-after [20 seconds], down-all-when-unstable [15 seconds], selfUniqueAddress [akka://ClusterSystem@127.0.0.1:25251#3564205239811251040], selfDc [default].
[2022-08-08 15:37:58,416] [INFO] [akka.event.slf4j.Slf4jLogger] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Slf4jLogger started
[2022-08-08 15:37:58,426] [INFO] [akka.remote.artery.ArteryTransport] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Remoting started with transport [Artery tcp]; listening on address [akka://ClusterSystem@127.0.0.1:25252] with UID [-8853670040551583432]
[2022-08-08 15:37:58,427] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Starting up, Akka version [2.6.19] ...
[2022-08-08 15:37:58,432] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Could not register Cluster JMX MBean with name=akka:type=Cluster as it is already registered. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:37:58,432] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Started up successfully
[2022-08-08 15:37:58,435] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-3] - SBR started. Config: strategy [KeepMajority], stable-after [20 seconds], down-all-when-unstable [15 seconds], selfUniqueAddress [akka://ClusterSystem@127.0.0.1:25252#-8853670040551583432], selfDc [default].
[2022-08-08 15:37:58,453] [INFO] [akka.event.slf4j.Slf4jLogger] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Slf4jLogger started
[2022-08-08 15:37:58,460] [INFO] [akka.remote.artery.ArteryTransport] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Remoting started with transport [Artery tcp]; listening on address [akka://ClusterSystem@127.0.0.1:53002] with UID [-574327065987149765]
[2022-08-08 15:37:58,461] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:53002] - Starting up, Akka version [2.6.19] ...
[2022-08-08 15:37:58,463] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Could not register Cluster JMX MBean with name=akka:type=Cluster as it is already registered. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:37:58,463] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:53002] - Started up successfully
[2022-08-08 15:37:58,465] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-14] - SBR started. Config: strategy [KeepMajority], stable-after [20 seconds], down-all-when-unstable [15 seconds], selfUniqueAddress [akka://ClusterSystem@127.0.0.1:53002#-574327065987149765], selfDc [default].
[success] Total time: 2 s, completed Aug. 8, 2022, 3:37:58 p.m.
[2022-08-08 15:37:58,514] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon/joinSeedNodeProcess-1#308265551]], but this node is not initialized yet
[2022-08-08 15:37:58,514] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:53002/system/cluster/core/daemon/joinSeedNodeProcess-1#1505356896]], but this node is not initialized yet
[2022-08-08 15:37:58,514] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:25251/system/cluster/core/daemon/firstSeedNodeProcess-1#-619166563]], but this node is not initialized yet
[2022-08-08 15:37:58,514] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoin message from [Actor[akka://ClusterSystem@127.0.0.1:53002/system/cluster/core/daemon/joinSeedNodeProcess-1#1505356896]], but this node is not initialized yet
[2022-08-08 15:37:58,517] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Received InitJoinNack message from [Actor[akka://ClusterSystem@127.0.0.1:25252/system/cluster/core/daemon#1041604394]] to [akka://ClusterSystem@127.0.0.1:25251]
[2022-08-08 15:37:58,525] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Node [akka://ClusterSystem@127.0.0.1:25251] is JOINING itself (with roles [dc-default], version [0.0.0]) and forming new cluster
[2022-08-08 15:37:58,526] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - is the new leader among reachable nodes (more leaders may exist)
[2022-08-08 15:37:58,531] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:25251] to [Up]
[2022-08-08 15:37:58,535] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Up: akka://ClusterSystem@127.0.0.1:25251
[2022-08-08 15:37:58,537] [INFO] [akka.cluster.sbr.SplitBrainResolver] [] [ClusterSystem-akka.actor.default-dispatcher-5] - This node is now the leader responsible for taking SBR decisions among the reachable nodes (more leaders may exist).
[2022-08-08 15:37:58,647] [INFO] [akka.actor.CoordinatedShutdown] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Running CoordinatedShutdown with reason [JvmExitReason]
[2022-08-08 15:37:58,647] [INFO] [akka.actor.CoordinatedShutdown] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Running CoordinatedShutdown with reason [JvmExitReason]
[2022-08-08 15:37:58,647] [INFO] [akka.actor.CoordinatedShutdown] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Running CoordinatedShutdown with reason [JvmExitReason]
[2022-08-08 15:37:58,651] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Marked address [akka://ClusterSystem@127.0.0.1:25251] as [Leaving]
[2022-08-08 15:37:58,652] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Exiting completed
[2022-08-08 15:37:58,652] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Shutting down...
[2022-08-08 15:37:58,652] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-3] - Message [akka.cluster.ClusterUserAction$Leave] to Actor[akka://ClusterSystem/system/cluster/core/daemon#1041604394] was unhandled. [1] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:37:58,652] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:25252] - Successfully shut down
[2022-08-08 15:37:58,653] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:53002] - Exiting completed
[2022-08-08 15:37:58,653] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:53002] - Shutting down...
[2022-08-08 15:37:58,653] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Could not unregister Cluster JMX MBean with name=akka:type=Cluster as it was not found. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:37:58,653] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Cluster Node [akka://ClusterSystem@127.0.0.1:53002] - Successfully shut down
[2022-08-08 15:37:58,653] [INFO] [akka.actor.LocalActorRef] [akkaDeadLetter] [ClusterSystem-akka.actor.default-dispatcher-3] - Message [akka.cluster.ClusterUserAction$Leave] to Actor[akka://ClusterSystem/system/cluster/core/daemon#-158889] was unhandled. [1] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[2022-08-08 15:37:58,659] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Shutting down remote daemon.
[2022-08-08 15:37:58,659] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Shutting down remote daemon.
[2022-08-08 15:37:58,659] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Remote daemon shut down; proceeding with flushing remote transports.
[2022-08-08 15:37:58,659] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Remote daemon shut down; proceeding with flushing remote transports.
[2022-08-08 15:37:58,673] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-15] - [outbound connection to [akka://ClusterSystem@127.0.0.1:53002], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,673] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-15] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,673] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-15] - [outbound connection to [akka://ClusterSystem@127.0.0.1:53002], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,673] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-14] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,673] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-14] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25252], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,674] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-14] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25252], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,674] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-15] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,674] [WARN] [akka.stream.Materializer] [] [ClusterSystem-akka.actor.default-dispatcher-14] - [outbound connection to [akka://ClusterSystem@127.0.0.1:25251], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
[2022-08-08 15:37:58,678] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-15] - Remoting shut down.
[2022-08-08 15:37:58,678] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-14] - Remoting shut down.
[2022-08-08 15:37:59,201] [INFO] [akka.cluster.Cluster] [akkaMemberChanged] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Leader is moving node [akka://ClusterSystem@127.0.0.1:25251] to [Exiting]
[2022-08-08 15:37:59,202] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-26] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Exiting completed
[2022-08-08 15:37:59,203] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Shutting down...
[2022-08-08 15:37:59,204] [WARN] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Could not unregister Cluster JMX MBean with name=akka:type=Cluster as it was not found. If you are running multiple clusters in the same JVM, set 'akka.cluster.jmx.multi-mbeans-in-same-jvm = on' in config
[2022-08-08 15:37:59,204] [INFO] [akka.cluster.Cluster] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Cluster Node [akka://ClusterSystem@127.0.0.1:25251] - Successfully shut down
[2022-08-08 15:37:59,204] [INFO] [sample.cluster.simple.ClusterListener$] [] [ClusterSystem-akka.actor.default-dispatcher-3] - Member is Removed: akka://ClusterSystem@127.0.0.1:25251 after Exiting
[2022-08-08 15:37:59,206] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Shutting down remote daemon.
[2022-08-08 15:37:59,206] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Remote daemon shut down; proceeding with flushing remote transports.
[2022-08-08 15:38:00,234] [INFO] [akka.remote.RemoteActorRefProvider$RemotingTerminator] [] [ClusterSystem-akka.actor.default-dispatcher-5] - Remoting shut down.
bwbecker@beta-2 akka-samples-cluster-scala %
bwbecker commented 2 years ago

PS: At the time this was submitted, the akkaVersion was 2.6.19.
Running on an up-to-date MacBook Pro (m1 processor). SBT was installed with homebrew