One thing that I've noticed is it seems to startup as JMX. But then it
subsequently provisions Sigar. Though the provision is logged as an error
message.
The log output looks like this:
> runMain sample.cluster.factorial.FactorialApp
[warn] Scala version was updated by one of library dependencies:
[warn] * org.scala-lang:scala-library:2.11.7 -> 2.11.8
[warn] To force scalaVersion, add the following:
[warn] ivyScala := ivyScala.value map { _.copy(overrideScalaVersion =
true) }
[warn] Run 'evicted' to see detailed eviction warnings
[info] Running sample.cluster.factorial.FactorialApp
[info] [INFO] [08/20/2016 12:45:17.497] [main] [akka.remote.Remoting]
Starting remoting
[info] [INFO] [08/20/2016 12:45:17.684] [main] [akka.remote.Remoting]
Remoting started; listening on addresses :[akka.tcp://
[email protected]:2551]
[info] [INFO] [08/20/2016 12:45:17.700] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Starting up...
[info] [INFO] [08/20/2016 12:45:17.778] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Registered cluster JMX MBean
[akka:type=Cluster]
[info] [INFO] [08/20/2016 12:45:17.778] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Started up successfully
[error] Aug 20, 2016 12:45:17 PM kamon.sigar.SigarProvisioner provision
[info] [INFO] [08/20/2016 12:45:17.825] [main] [akka.remote.Remoting]
Starting remoting
[error] WARNING: Sigar library is already provisioned.
[info] [INFO] [08/20/2016 12:45:17.825]
[ClusterSystem-akka.actor.default-dispatcher-2]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Metrics collection has started successfully
[error] Aug 20, 2016 12:45:17 PM kamon.sigar.SigarProvisioner provision
[info] [INFO] [08/20/2016 12:45:17.825] [main] [akka.remote.Remoting]
Remoting started; listening on addresses :[akka.tcp://
[email protected]:2552]
[error] WARNING: Sigar library is already provisioned.
[error] Aug 20, 2016 12:45:17 PM kamon.sigar.SigarProvisioner provision
[info] [INFO] [08/20/2016 12:45:17.825] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2552] - Starting up...
[error] WARNING: Sigar library is already provisioned.
[info] [INFO] [08/20/2016 12:45:17.841] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2552] - Started up successfully
[error] Aug 20, 2016 12:45:17 PM kamon.sigar.SigarProvisioner provision
[info] [INFO] [08/20/2016 12:45:17.841]
[ClusterSystem-akka.actor.default-dispatcher-4]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2552] - Metrics collection has started successfully
[error] WARNING: Sigar library is already provisioned.
[info] [INFO] [08/20/2016 12:45:17.856] [main] [akka.remote.Remoting]
Starting remoting
[info] [INFO] [08/20/2016 12:45:17.856] [main] [akka.remote.Remoting]
Remoting started; listening on addresses :[akka.tcp://
[email protected]:50317]
[info] [INFO] [08/20/2016 12:45:17.856] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50317] - Starting up...
[info] [INFO] [08/20/2016 12:45:17.856] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50317] - Started up successfully
[info] [INFO] [08/20/2016 12:45:17.872]
[ClusterSystem-akka.actor.default-dispatcher-4]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50317] - Metrics collection has started successfully
[info] [INFO] [08/20/2016 12:45:17.888] [main] [akka.remote.Remoting]
Starting remoting
[info] [INFO] [08/20/2016 12:45:17.903] [main] [akka.remote.Remoting]
Remoting started; listening on addresses :[akka.tcp://
[email protected]:50332]
[info] [INFO] [08/20/2016 12:45:17.903] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50332] - Starting up...
[info] [INFO] [08/20/2016 12:45:17.903] [main]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50332] - Started up successfully
[info] [INFO] [08/20/2016 12:45:17.903] [main]
[akka.actor.ActorSystemImpl(ClusterSystem)] Factorials will start when 2
backend members in the cluster.
[info] [INFO] [08/20/2016 12:45:17.903]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50332] - Metrics collection has started successfully
[info] [INFO] [08/20/2016 12:45:17.950]
[ClusterSystem-akka.actor.default-dispatcher-16]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Node [akka.tcp://
[email protected]:2551] is JOINING, roles [backend]
[info] [INFO] [08/20/2016 12:45:20.856]
[ClusterSystem-akka.actor.default-dispatcher-14] [akka.tcp://
[email protected]:2551/user/metricsListener] Used heap:
24.170730590820312 MB
[info] [INFO] [08/20/2016 12:45:20.872]
[ClusterSystem-akka.actor.default-dispatcher-17] [akka.tcp://
[email protected]:2552/user/metricsListener] Used heap:
24.502845764160156 MB
[info] [INFO] [08/20/2016 12:45:20.888]
[ClusterSystem-akka.actor.default-dispatcher-22] [akka.tcp://
[email protected]:50317/user/metricsListener] Used heap:
24.502845764160156 MB
[info] [INFO] [08/20/2016 12:45:22.998]
[ClusterSystem-akka.actor.default-dispatcher-18]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Node [akka.tcp://
[email protected]:50317] is JOINING, roles [backend]
[info] [INFO] [08/20/2016 12:45:22.998]
[ClusterSystem-akka.actor.default-dispatcher-18]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Node [akka.tcp://
[email protected]:50332] is JOINING, roles [frontend]
[info] [INFO] [08/20/2016 12:45:22.998]
[ClusterSystem-akka.actor.default-dispatcher-18]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Node [akka.tcp://
[email protected]:2552] is JOINING, roles [backend]
[info] [INFO] [08/20/2016 12:45:23.092]
[ClusterSystem-akka.actor.default-dispatcher-16]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50332] - Welcome from [akka.tcp://
[email protected]:2551]
[info] [INFO] [08/20/2016 12:45:23.092]
[ClusterSystem-akka.actor.default-dispatcher-23]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:50317] - Welcome from [akka.tcp://
[email protected]:2551]
[info] [INFO] [08/20/2016 12:45:23.092]
[ClusterSystem-akka.actor.default-dispatcher-17]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2552] - Welcome from [akka.tcp://
[email protected]:2551]
[info] [INFO] [08/20/2016 12:45:23.827]
[ClusterSystem-akka.actor.default-dispatcher-2]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Leader is moving node [akka.tcp://
[email protected]:2551] to [Up]
[info] [INFO] [08/20/2016 12:45:23.827]
[ClusterSystem-akka.actor.default-dispatcher-2]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Leader is moving node [akka.tcp://
[email protected]:2552] to [Up]
[info] [INFO] [08/20/2016 12:45:23.827]
[ClusterSystem-akka.actor.default-dispatcher-2]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Leader is moving node [akka.tcp://
[email protected]:50317] to [Up]
[info] [INFO] [08/20/2016 12:45:23.827]
[ClusterSystem-akka.actor.default-dispatcher-2]
[akka.cluster.Cluster(akka://ClusterSystem)] Cluster Node [akka.tcp://
[email protected]:2551] - Leader is moving node [akka.tcp://
[email protected]:50332] to [Up]
[info] [INFO] [08/20/2016 12:45:23.842]
[ClusterSystem-akka.actor.default-dispatcher-18] [akka.tcp://
[email protected]:2551/user/metricsListener] Used heap:
25.406883239746094 MB
[info] [INFO] [08/20/2016 12:45:23.842]
[ClusterSystem-akka.actor.default-dispatcher-2] [akka.tcp://
[email protected]:2552/user/metricsListener] Used heap:
25.679889678955078 MB
[info] [INFO] [08/20/2016 12:45:23.889]
[ClusterSystem-akka.actor.default-dispatcher-5] [akka.tcp://
[email protected]:50317/user/metricsListener] Used heap:
26.044485092163086 MB
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [2] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [3] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [4] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [5] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [6] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [7] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [8] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [9] 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'.
[info] [INFO] [08/20/2016 12:45:24.827]
[ClusterSystem-akka.actor.default-dispatcher-6]
[akka://ClusterSystem/deadLetters] Message [java.lang.Integer] from
Actor[akka://ClusterSystem/user/factorialFrontend#289680043] to
Actor[akka://ClusterSystem/deadLetters] was not delivered. [10] dead
letters encountered, no more dead letters will be logged. This logging can
be turned off or adjusted with configuration settings
'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[info] [INFO] [08/20/2016 12:45:26.845]
[ClusterSystem-akka.actor.default-dispatcher-16] [akka.tcp://
[email protected]:2551/user/metricsListener] Used heap:
27.490310668945312 MB
[info] [INFO] [08/20/2016 12:45:26.861]
[ClusterSystem-akka.actor.default-dispatcher-20] [akka.tcp://
[email protected]:2552/user/metricsListener] Used heap:
27.72617530822754 MB
[info] [INFO] [08/20/2016 12:45:26.892]
[ClusterSystem-akka.actor.default-dispatcher-25] [akka.tcp://
[email protected]:50317/user/metricsListener] Used heap:
28.058615684509277 MB
[info] [INFO] [08/20/2016 12:45:29.845]
[ClusterSystem-akka.actor.default-dispatcher-3] [akka.tcp://
[email protected]:2551/user/metricsListener] Used heap:
29.725139617919922 MB
[info] [INFO] [08/20/2016 12:45:29.861]
[ClusterSystem-akka.actor.default-dispatcher-16] [akka.tcp://
[email protected]:2552/user/metricsListener] Used heap:
31.370417594909668 MB
[info] [INFO] [08/20/2016 12:45:29.877]
[ClusterSystem-akka.actor.default-dispatcher-6] [akka.tcp://
[email protected]:50317/user/metricsListener] Used heap:
31.119688034057617 MB
[info] [INFO] [08/20/2016 12:45:32.845]
[ClusterSystem-akka.actor.default-dispatcher-2] [akka.tcp://
[email protected]:2551/user/metricsListener] Used heap:
34.224236488342285 MB
[info] [INFO] [08/20/2016 12:45:32.861]
[ClusterSystem-akka.actor.default-dispatcher-19] [akka.tcp://
[email protected]:2552/user/metricsListener] Used heap:
35.63067626953125 MB
[info] [INFO] [08/20/2016 12:45:32.892]
[ClusterSystem-akka.actor.default-dispatcher-19] [akka.tcp://
[email protected]:50317/user/metricsListener] Used heap:
34.61888408660889 MB
[info] [INFO] [08/20/2016 12:45:34.861]
[ClusterSystem-akka.actor.default-dispatcher-3] [akka.tcp://
[email protected]:50332/user/factorialFrontend] Timeout
[info] [WARN] [08/20/2016 12:45:34.892]
[ClusterSystem-akka.remote.default-remote-dispatcher-6]
[akka.serialization.Serialization(akka://ClusterSystem)] Using the default
Java serializer for class [scala.Tuple2] which is not recommended because
of performance implications. Use another serializer or disable this warning
using the setting 'akka.actor.warn-about-java-serializer-usage'
[info] [WARN] [08/20/2016 12:45:34.892]
[ClusterSystem-akka.remote.default-remote-dispatcher-7]
[akka.serialization.Serialization(akka://ClusterSystem)] Using the default
Java serializer for class [scala.Tuple2] which is not recommended because
of performance implications. Use another serializer or disable this warning
using the setting 'akka.actor.warn-about-java-serializer-usage'
[info] [WARN] [08/20/2016 12:45:34.892]
[ClusterSystem-akka.remote.default-remote-dispatcher-6]
[akka.serialization.Serialization(akka://ClusterSystem)] Using the default
Java serializer for class [scala.Tuple2] which is not recommended because
of performance implications. Use another serializer or disable this warning
using the setting 'akka.actor.warn-about-java-serializer-usage'
[info] [INFO] [08/20/2016 12:45:35.845]
[ClusterSystem-akka.actor.default-dispatcher-2] [akka.tcp://
[email protected]:2551/user/metricsListener] Used heap:
51.5294075012207 MB
[info] [INFO] [08/20/2016 12:45:35.861]
[ClusterSystem-akka.actor.default-dispatcher-39] [akka.tcp://
[email protected]:2552/user/metricsListener] Used heap:
57.282443046569824 MB
--
>>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>>>>>> Check the FAQ:
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user
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