[jira] [Resolved] (FLINK-8327) ClassLoader resolution of child-first does not appear to work

["Raymond Tay (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-8327?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Raymond Tay resolved FLINK-8327.
--------------------------------
    Resolution: Information Provided

> ClassLoader resolution of child-first does not appear to work
> -------------------------------------------------------------
>
>                 Key: FLINK-8327
>                 URL: https://issues.apache.org/jira/browse/FLINK-8327
>             Project: Flink
>          Issue Type: Bug
>          Components: Queryable State
>    Affects Versions: 1.4.0
>         Environment: h3. Environment
> * Local flink cluster version 1.4.0
> * {{classloader.resolve-order: child-first}} in {{conf/flink-conf.yaml}}.
> * scala 2.11.11
> * oracle jdk 1.8.0
> h3. Library version
> * akka actors 2.4.20
> * akka http 10.0.10
>            Reporter: Raymond Tay
>
> h2. Description
> Was trying out the {{Queryable State}} and ran into a problem where the submitted job starts regular Akka actors and making external HTTP calls via {{akka-http}} libraries and the flink runtime was complaining that it was not able to read the key {{akka.http}} (this key is held in the configuration file for {{akka-http}}).
> When i ran our app on the {{sbt}} shell locally, it was able to see the key {{akka.http}} but when we submitted the fatjar (via {{sbt-assembly}}) to flink, it was throwing the error message (see below). Looks like a class loader issue but i'm not sure.
> Any help is much appreciated !
> h2. Error message
> {noformat}
> Caused by: com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'akka.http'
> 	at com.typesafe.config.impl.SimpleConfig.findKeyOrNull(SimpleConfig.java:152)
> 	at com.typesafe.config.impl.SimpleConfig.findOrNull(SimpleConfig.java:170)
> 	at com.typesafe.config.impl.SimpleConfig.findOrNull(SimpleConfig.java:176)
> 	at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:184)
> 	at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:189)
> 	at com.typesafe.config.impl.SimpleConfig.getObject(SimpleConfig.java:258)
> 	at com.typesafe.config.impl.SimpleConfig.getConfig(SimpleConfig.java:264)
> 	at com.typesafe.config.impl.SimpleConfig.getConfig(SimpleConfig.java:37)
> 	at akka.http.scaladsl.Http$.createExtension(Http.scala:843)
> 	at akka.http.scaladsl.Http$.createExtension(Http.scala:719)
> 	at akka.actor.ActorSystemImpl.registerExtension(ActorSystem.scala:917)
> 	at akka.actor.ExtensionId$class.apply(Extension.scala:79)
> 	at akka.http.scaladsl.Http$.apply(Http.scala:838)
> 	at akka.http.scaladsl.Http$.apply(Http.scala:719)
> 	at org.example.state.A.<init>(Simple.scala:158)
> 	... 18 more
> {noformat}



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