EMR5.0&Spark2.0: When start jobServer find ClassNotFoundException: akka.event.slf4j.Slf4jLogger

[BourneYu]

error while starting up loggers
akka.ConfigurationException: Logger specified in config can't be loaded [akka.event.slf4j.Slf4jLogger] due to [java.lang.ClassNotFoundException: akka.event.slf4j.Slf4jLogger]
at akka.event.LoggingBus$$anonfun$4$$anonfun$apply$1.applyOrElse(Logging.scala:116)
at akka.event.LoggingBus$$anonfun$4$$anonfun$apply$1.applyOrElse(Logging.scala:115)
at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:216)
at scala.util.Try$.apply(Try.scala:192)
at scala.util.Failure.recover(Try.scala:216)
at akka.event.LoggingBus$$anonfun$4.apply(Logging.scala:115)
at akka.event.LoggingBus$$anonfun$4.apply(Logging.scala:110)
at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:683)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:682)
at akka.event.LoggingBus$class.startDefaultLoggers(Logging.scala:110)
at akka.event.EventStream.startDefaultLoggers(EventStream.scala:26)
at akka.actor.LocalActorRefProvider.init(ActorRefProvider.scala:623)
at akka.remote.RemoteActorRefProvider.init(RemoteActorRefProvider.scala:157)
at akka.cluster.ClusterActorRefProvider.init(ClusterActorRefProvider.scala:58)
at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:620)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:617)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:617)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:634)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:142)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:119)
at spark.jobserver.JobServer$.spark$jobserver$JobServer$$makeSupervisorSystem$1(JobServer.scala:154)
at spark.jobserver.JobServer$$anonfun$main$1.apply(JobServer.scala:156)
at spark.jobserver.JobServer$$anonfun$main$1.apply(JobServer.scala:156)
at spark.jobserver.JobServer$.start(JobServer.scala:54)
at spark.jobserver.JobServer$.main(JobServer.scala:156)
at spark.jobserver.JobServer.main(JobServer.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:729)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:185)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:210)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:124)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

[noorul]

We do not support spark 2.0 yet.

[barrybecker4]

This will work if you build job-server based on one of the branches based on the spark-2.0-preview branches. I got this message too, but then realized I was using the old jobserver jar with SPARK_HOME pointing to spark-2.1.0. Once I updated to use the jobserver jar built for spark 2.x, it worked.