Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/4554
This is the exception I got with the class loader from
https://github.com/apache/flink/blob/fa11845b926f8371e9cee47775ca0e48176b686e/flink-contrib/flink-statebackend-rocksdb/src/test/java/org/apache/flink/contrib/streaming/state/RocksDbMultiClassLoaderTest.java:
```
org.apache.flink.client.program.ProgramInvocationException: Could not start
the ActorSystem needed to talk to the JobManager.
at
org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:462)
at
org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:105)
at
org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:443)
at
org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute(StreamContextEnvironment.java:66)
at
org.apache.flink.streaming.tests.ClassLoaderTestProgram.main(ClassLoaderTestProgram.java:95)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:538)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:430)
at
org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:383)
at
org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:840)
at org.apache.flink.client.CliFrontend.run(CliFrontend.java:285)
at
org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1088)
at org.apache.flink.client.CliFrontend$2.call(CliFrontend.java:1135)
at org.apache.flink.client.CliFrontend$2.call(CliFrontend.java:1132)
at
org.apache.flink.runtime.security.HadoopSecurityContext$1.run(HadoopSecurityContext.java:44)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1556)
at
org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1132)
Caused by: org.apache.flink.util.FlinkException: Could not start the
ActorSystem lazily.
at
org.apache.flink.client.program.ClusterClient$LazyActorSystemLoader.get(ClusterClient.java:235)
at
org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:460)
... 22 more
Caused by: com.typesafe.config.ConfigException$Missing: No configuration
setting found for key 'akka.version'
at com.typesafe.config.impl.SimpleConfig.findKey(SimpleConfig.java:124)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:145)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:151)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:159)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:164)
at
com.typesafe.config.impl.SimpleConfig.getString(SimpleConfig.java:206)
at akka.actor.ActorSystem$Settings.<init>(ActorSystem.scala:169)
at akka.actor.ActorSystemImpl.<init>(ActorSystem.scala:505)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:142)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:119)
at akka.actor.ActorSystem$.create(ActorSystem.scala:67)
at
org.apache.flink.runtime.akka.AkkaUtils$.createActorSystem(AkkaUtils.scala:106)
at
org.apache.flink.runtime.akka.AkkaUtils$.createActorSystem(AkkaUtils.scala:94)
at
org.apache.flink.runtime.akka.AkkaUtils.createActorSystem(AkkaUtils.scala)
at
org.apache.flink.client.program.ClusterClient$LazyActorSystemLoader.get(ClusterClient.java:231)
... 23 more
```
This is on the client but just seeing it makes me believe that that class
loader could cause problems.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
