I am trying to incorporate akka http to spark. when submitting job with
command
spark-submit --class example.MyHttp
/path/to/target/scala-2.11/my-assembly-0.1.jar
it throws exceptions "Could not resolve substitution to a value:
${akka.stream.blocking-io-dispatcher}"
Exception in thread "main"
com.typesafe.config.ConfigException$UnresolvedSubstitution: reference.conf
@
jar:file:/path/to/project/target/scala-2.11/my-assembly-0.1.jar!/reference.conf:
42: Could not resolve substitution to a value:
${akka.stream.blocking-io-dispatcher}
at
com.typesafe.config.impl.ConfigReference.resolveSubstitutions(ConfigReference.java:108)
at
com.typesafe.config.impl.ResolveContext.realResolve(ResolveContext.java:179)
at
com.typesafe.config.impl.ResolveContext.resolve(ResolveContext.java:142)
at
com.typesafe.config.impl.SimpleConfigObject$ResolveModifier.modifyChildMayThrow(SimpleConfigObject.java:379)
at
com.typesafe.config.impl.SimpleConfigObject.modifyMayThrow(SimpleConfigObject.java:312)
at
com.typesafe.config.impl.SimpleConfigObject.resolveSubstitutions(SimpleConfigObject.java:398)
at
com.typesafe.config.impl.ResolveContext.realResolve(ResolveContext.java:179)
at
com.typesafe.config.impl.ResolveContext.resolve(ResolveContext.java:142)
at
com.typesafe.config.impl.SimpleConfigObject$ResolveModifier.modifyChildMayThrow(SimpleConfigObject.java:379)
at
com.typesafe.config.impl.SimpleConfigObject.modifyMayThrow(SimpleConfigObject.java:312)
After googling a bit, it seems to be the problem when merging multiple
reference.conf files. But I don't find a solution for this problem.
My sbt looks below
scalaVersion := "2.11.8"
libraryDependencies ++= Seq(
"com.typesafe.akka" %% "akka-http" % "10.0.6",
"com.typesafe.akka" %% "akka-http-xml" % "10.0.6",
"org.apache.spark" %% "spark-streaming" % "2.1.0" % "provided",
"com.typesafe" % "config" % "1.3.1",
"org.scalatest" %% "scalatest" % "2.2.6" % "test"
)
assemblyMergeStrategy in assembly := {
case PathList("META-INF", xs @ _*) => MergeStrategy.discard
case x => MergeStrategy.first
}
How can I fix it? I appreciate any suggestions. Thanks
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