小编use*_*470的帖子

我是Spark和Scala的新手.我用SBT创建了一个IntelliJ Scala项目,并为build.sbt添加了几行.

name := "test-one"

version := "1.0"

scalaVersion := "2.11.2"

libraryDependencies += "org.apache.spark" % "spark-core_2.10" % "1.1.0"

我的Scala版本是2.10.4,但2.11.2也会出现这个问题

Exception in thread "main" java.lang.NoClassDefFoundError: scala/collection/GenTraversableOnce$class
    at akka.util.Collections$EmptyImmutableSeq$.<init>(Collections.scala:15)
    at akka.util.Collections$EmptyImmutableSeq$.<clinit>(Collections.scala)
    at akka.japi.Util$.immutableSeq(JavaAPI.scala:209)
    at akka.actor.ActorSystem$Settings.<init>(ActorSystem.scala:150)
    at akka.actor.ActorSystemImpl.<init>(ActorSystem.scala:470)
    at akka.actor.ActorSystem$.apply(ActorSystem.scala:111)
    at akka.actor.ActorSystem$.apply(ActorSystem.scala:104)
    at org.apache.spark.util.AkkaUtils$.org$apache$spark$util$AkkaUtils$$doCreateActorSystem(AkkaUtils.scala:121)
    at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:54)
    at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:53)
    at org.apache.spark.util.Utils$$anonfun$startServiceOnPort$1.apply$mcVI$sp(Utils.scala:1446)
    at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160)
    at org.apache.spark.util.Utils$.startServiceOnPort(Utils.scala:1442)
    at org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:56)
    at org.apache.spark.SparkEnv$.create(SparkEnv.scala:153)
    at org.apache.spark.SparkContext.<init>(SparkContext.scala:203)
    at TweeProcessor$.main(TweeProcessor.scala:10)
    at TweeProcessor.main(TweeProcessor.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.lang.ClassNotFoundException: scala.collection.GenTraversableOnce$class
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355) …

是否有任何可能的教程或库可用于通过使用TOR来保护连接？我已经找了一些示例用法,但我的研究没有产生任何可靠的结果.我遇到了这个项目列表,但链接似乎并没有真正导致库或API.

我想要做的是通过连接到TOR来保护客户端应用程序和cassandra服务器之间的连接.

任何帮助,将不胜感激.