无法启动spark-shell

Question

我使用的是Spark 1.4.1。我可以毫不费力地使用spark-submit。但是当我运行~/spark/bin/spark-shell时

我得到了下面的错误，我已经配置了SPARK_HOME和JAVA_HOME。然而，使用Spark 1.2就可以了

15/10/08 02:40:30 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

Failed to initialize compiler: object scala.runtime 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 programatically, settings.usejavacp.value = true.

Failed to initialize compiler: object scala.runtime 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 programatically, settings.usejavacp.value = true.
Exception in thread "main" java.lang.AssertionError: assertion failed: null
        at scala.Predef$.assert(Predef.scala:179)
        at org.apache.spark.repl.SparkIMain.initializeSynchronous(SparkIMain.scala:247)
        at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply$mcZ$sp(SparkILoop.scala:990)
        at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
        at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
        at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
        at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:945)
        at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1059)
        at org.apache.spark.repl.Main$.main(Main.scala:31)
        at org.apache.spark.repl.Main.main(Main.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:665)
        at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:170)
        at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:193)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:112)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

Answer 1

我在运行spark时遇到了同样的问题，但我发现这是我的错，因为我没有正确配置scala。确保您安装了Java、Scala和sbt，并且构建了Spark：

编辑vim .bashrc的.bashrc文件

设置环境变量：

export JAVA_HOME=/usr/lib/jvm/java-7-oracle
export PATH=$JAVA_HOME:$PATH

export SCALA_HOME=/usr/local/src/scala/scala-2.11.5
export PATH=$SCALA_HOME/bin:$PATH

export SPARK_HOME=/usr/local/src/apache/spark.2.0.0/spark
export PATH=$SPARK_HOME/bin:$PATH

获取您的设置。.bashrc

检查scala scala -version

确保repl启动scala

如果你的排斥开始了，试着重新启动你的火花壳。./path/to/spark/bin/spark-shell

你应该得到spark repl

Answer 2

你可以试着运行

spark-shell -usejavacp

它不适用于我，但它确实适用于Spark Issue 18778描述中的某个人。

Answer 3

你安装scala和sbt了吗？

日志显示没有找到主类。