Question

我尝试在JAVA 9.0.1上运行的Ubuntu 16.04机器上安装Spark。我有scala-2.12.4和spark-2.2.1-bin-hadoop2.7因为我有hadoop 2.7.5。我使用this documentation设置了各自的环境变量。

我收到这样的错误：

Failed to initialize compiler: object java.lang.Object in compiler mirror not found.
** Note that as of 2.8 scala does not assume use of the java classpath.
** For the old behavior pass -usejavacp to scala, or if using a Settings
** object programmatically, settings.usejavacp.value = true.

Failed to initialize compiler: object java.lang.Object in compiler mirror not found.
** Note that as of 2.8 scala does not assume use of the java classpath.
** For the old behavior pass -usejavacp to scala, or if using a Settings
** object programmatically, settings.usejavacp.value = true.
Exception in thread "main" java.lang.NullPointerException
    at scala.reflect.internal.SymbolTable.exitingPhase(SymbolTable.scala:256)
    at scala.tools.nsc.interpreter.IMain$Request.x$20$lzycompute(IMain.scala:896)
    at scala.tools.nsc.interpreter.IMain$Request.x$20(IMain.scala:895)
    at scala.tools.nsc.interpreter.IMain$Request.headerPreamble$lzycompute(IMain.scala:895)
    at scala.tools.nsc.interpreter.IMain$Request.headerPreamble(IMain.scala:895)
    at scala.tools.nsc.interpreter.IMain$Request$Wrapper.preamble(IMain.scala:918)
    at scala.tools.nsc.interpreter.IMain$CodeAssembler$$anonfun$apply$23.apply(IMain.scala:1337)
    at scala.tools.nsc.interpreter.IMain$CodeAssembler$$anonfun$apply$23.apply(IMain.scala:1336)
    at scala.tools.nsc.util.package$.stringFromWriter(package.scala:64)
    at scala.tools.nsc.interpreter.IMain$CodeAssembler$class.apply(IMain.scala:1336)
    at scala.tools.nsc.interpreter.IMain$Request$Wrapper.apply(IMain.scala:908)
    at scala.tools.nsc.interpreter.IMain$Request.compile$lzycompute(IMain.scala:1002)
    at scala.tools.nsc.interpreter.IMain$Request.compile(IMain.scala:997)
    at scala.tools.nsc.interpreter.IMain.compile(IMain.scala:579)
    at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:567)
    at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:565)
    at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:807)
    at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:681)
    at scala.tools.nsc.interpreter.ILoop.processLine(ILoop.scala:395)
    at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply$mcV$sp(SparkILoop.scala:38)
    at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply(SparkILoop.scala:37)
    at org.apache.spark.repl.SparkILoop$$anonfun$initializeSpark$1.apply(SparkILoop.scala:37)
    at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:214)
    at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:37)
    at org.apache.spark.repl.SparkILoop.loadFiles(SparkILoop.scala:98)
    at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:920)
    at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:909)
    at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:909)
    at scala.reflect.internal.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:97)
    at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:909)
    at org.apache.spark.repl.Main$.doMain(Main.scala:74)
    at org.apache.spark.repl.Main$.main(Main.scala:54)
    at org.apache.spark.repl.Main.main(Main.scala)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:775)
    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:119)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

我该如何解决这个问题？

Answer 1

错误消息准确解释了问题并提供了解决方案。

** Note that as of 2.8 scala does not assume use of the java classpath.
** For the old behavior pass -usejavacp to scala, or if using a Settings
** object programmatically, settings.usejavacp.value = true.

因为消息说使用spark-shell -usejavacp来启动火花壳。

你也有其他一些问题。 Spark不支持Scala 2.12，因此您需要切换到Scala 2.11。您可能还会遇到由Java-9引起的问题。如果你做Java 8应该可以正常工作。

在ubuntu上安装Spark？

1 个答案: