问题描述
我有以下内容的简单的斯卡拉对象文件:
进口org.apache.spark.SparkContext
进口org.apache.spark.SparkContext._
进口org.apache.spark.SparkConf
对象X {
高清主(参数:数组[字符串]){ VAL PARAMS =地图[字符串,字符串](
ABC - > 22)
的println(创建星火配置);
VAL CONF =新SparkConf()。setAppName(X)
VAL SC =新SparkContext(CONF)
VAL txtFileLines = sc.textFile(/ tmp目录/ x.txt,2).cache()
VAL数= txtFileLines.count()
的println(计数+计数)
}
}
我build.sbt如下:
名称:=X版本:=1.0scalaVersion:=2.11.7libraryDependencies + =org.apache.spark%%火花核%1.5.2%规定
我然后做SBT包来创建 x.jar
在目标/斯卡拉2.11 /
当我执行上述code为:火花提交--class点¯x--master本地[2] x.jar
我收到以下错误:
创建星火配置
异常的线程主java.lang.NoSuchMethodError:斯卡拉preDEF $ .ArrowAssoc(Ljava /郎/对象;)Ljava /郎/对象;
在扫地$。主要(Sweeper.scala:14)
在Sweeper.main(Sweeper.scala)
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)
在sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
在java.lang.reflect.Method.invoke(Method.java:498)
在org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:674)
在org.apache.spark.deploy.SparkSubmit $ .doRunMain $ 1(SparkSubmit.scala:180)
在org.apache.spark.deploy.SparkSubmit $ .submit(SparkSubmit.scala:205)
在org.apache.spark.deploy.SparkSubmit $。主要(SparkSubmit.scala:120)
在org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
当你在你的项目使用Scala 2.11。您应该使用的火花核心库构建斯卡拉2.11。
可以从这里 http://mvnrepository.com/search?q=Spark
请参阅项目火花core_2.11罐子。
I have a simple scala object file with the following content:
import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.SparkConf
object X {
def main(args: Array[String]) {
val params = Map[String, String](
"abc" -> "22",)
println("Creating Spark Configuration");
val conf = new SparkConf().setAppName("X")
val sc = new SparkContext(conf)
val txtFileLines = sc.textFile("/tmp/x.txt", 2).cache()
val count = txtFileLines.count()
println("Count" + count)
}
}
My build.sbt looks like:
name := "x"
version := "1.0"
scalaVersion := "2.11.7"
libraryDependencies += "org.apache.spark" %% "spark-core" % "1.5.2" % "provided"
I then do sbt package to create x.jar
under target/scala-2.11/
When I execute the above code as:spark-submit --class X --master local[2] x.jar
I get the following error:
Creating Spark Configuration
Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.ArrowAssoc(Ljava/lang/Object;)Ljava/lang/Object;
at Sweeper$.main(Sweeper.scala:14)
at Sweeper.main(Sweeper.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:674)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
As you are using Scala 2.11 in your project. You should use spark core library build for Scala 2.11. Can download spark-core_2.11 from here http://mvnrepository.com/search?q=Spark
Refer spark-core_2.11 jar in project.
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