Question

我在spark中运行了一个字数统计程序但是我得到了以下错误我添加了scala-xml_2.11-1.0.2.jar

    Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
    16/12/16 05:14:02 INFO SparkContext: Running Spark version 2.0.2
    16/12/16 05:14:03 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
    16/12/16 05:14:03 WARN Utils: Your hostname, ubuntu resolves to a loopback address: 127.0.1.1; using 192.168.59.132 instead (on interface ens33) 
    16/12/16 05:14:03 WARN Utils: Set SPARK_LOCAL_IP if you need to bind to another address
    16/12/16 05:14:04 INFO SecurityManager: Changing view acls to: hadoopusr
    16/12/16 05:14:04 INFO SecurityManager: Changing modify acls to: hadoopusr
    16/12/16 05:14:04 INFO SecurityManager: Changing view acls groups to: 
    16/12/16 05:14:04 INFO SecurityManager: Changing modify acls groups to: 
    16/12/16 05:14:04 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users  with view permissions: Set(hadoopusr); groups with view permissions: Set(); users  with modify permissions: Set(hadoopusr); groups with modify permissions: Set()
    16/12/16 05:14:05 INFO Utils: Successfully started service 'sparkDriver' on port 40559.
    16/12/16 05:14:05 INFO SparkEnv: Registering MapOutputTracker
    16/12/16 05:14:05 INFO SparkEnv: Registering BlockManagerMaster
    16/12/16 05:14:05 INFO DiskBlockManager: Created local directory at /tmp/blockmgr-0b830180-ae51-451f-9673-4f98dbaff520
    16/12/16 05:14:05 INFO MemoryStore: MemoryStore started with capacity 433.6 MB
    16/12/16 05:14:05 INFO SparkEnv: Registering OutputCommitCoordinator
    Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.$scope()Lscala/xml/TopScope$;
        at org.apache.spark.ui.jobs.StagePage.<init>(StagePage.scala:44)
        at org.apache.spark.ui.jobs.StagesTab.<init>(StagesTab.scala:34)
        at org.apache.spark.ui.SparkUI.<init>(SparkUI.scala:62)
        at org.apache.spark.ui.SparkUI$.create(SparkUI.scala:219)
        at org.apache.spark.ui.SparkUI$.createLiveUI(SparkUI.scala:161)
        at org.apache.spark.SparkContext.<init>(SparkContext.scala:440)
        at LearnScala.WordCount$.main(WordCount.scala:15)
        at LearnScala.WordCount.main(WordCount.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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
    16/12/16 05:14:05 INFO DiskBlockManager: Shutdown hook called
    16/12/16 05:14:05 INFO ShutdownHookManager: Shutdown hook called
    16/12/16 05:14:05 INFO ShutdownHookManager: Deleting directory /tmp/spark-789e9a76-894f-468b-a39a-cf00da30e4ba/userFiles-3656d5f8-25ba-45c4-b2f6-9f654a049bb1
    16/12/16 05:14:05 INFO ShutdownHookManager: Deleting directory /tmp/spark-789e9a76-894f-468b-a39a-cf00da30e4ba

我使用以下版本

build.SBT：

name := "SparkApps"

version := "1.0"

scalaVersion := "2.11.5"

libraryDependencies += "org.apache.spark" % "spark-core_2.10" % "2.0.2"
// https://mvnrepository.com/artifact/org.apache.spark/spark-sql_2.10
libraryDependencies += "org.apache.spark" % "spark-sql_2.10" % "2.0.2"
// https://mvnrepository.com/artifact/org.apache.spark/spark-streaming_2.10
libraryDependencies += "org.apache.spark" % "spark-streaming_2.10" % "2.0.2"
// https://mvnrepository.com/artifact/org.apache.spark/spark-yarn_2.11
libraryDependencies += "org.apache.spark" % "spark-yarn_2.10" % "2.0.2"

Spark版本：2.0.2

Answer 1

我在火花中运行一个字数统计程序但是我得到了以下内容错误我添加了scala-xml_ 2.11 -1.0.2.jar

稍后我们可以看到：

libraryDependencies += "org.apache.spark" % "spark-core_2.10" % "2.0.2"

选择一个;）Scala 2.10或Scala 2.11。将Scala-XML版本更改为2.10或将Spark更改为2.11。从Spark 2.0开始，推荐使用Scala 2.11。

您可以通过在build.sbt中添加%%来轻松添加适当的Scala版本：

libraryDependencies += "org.apache.spark" %% "spark-core" % "2.0.2"

其次，在build.sbt中没有关于Scala-XML依赖的信息 - 你应该添加它。

最后，你必须通过--jars选项添加所有第三方罐子以进行spark-submit或者制作超级罐子 - 请参阅this问题

线程＆＃34; main＆＃34;中的例外情况java.lang.NoSuchMethodError：scala.Predef $。$ scope（）Lscala / xml / TopScope $;

1 个答案: