Question

基本上我需要在EMR上进行烫伤工作。同样的工作在我的macbook上的本地hadoop上运行完全正常，但是在EMR上的Hadoop上失败了。

我也在努力为级联用户和scala用户组中的这个问题寻求帮助，而且还无法做到。到目前为止，在过去几天尝试各种变化后，我没有取得多大进展。

在深入研究细节之前，这是错误：

线程“main”中的异常java.lang.NoSuchMethodError：scala.Predef $ .ArrowAssoc（Ljava / lang / Object;）Ljava / lang / Object; at com.aggregation.job.DataAggregation $。（DataAggregation.scala：30） at com.aggregation.job.DataAggregation $。（DataAggregation.scala） at com.aggregation.job.DataAggregation.main（DataAggregation.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）在org.apache.hadoop.util.RunJar.main（RunJar.java:212）

他们说这可能是与二进制文件的scala冲突，但我看不出任何明显的东西。如果有人可以帮忙搞清楚它会很棒。

环境：

Amazon EMR AMI：3.8.0（包括Scala 2.11.1，Hadoop 2.4.0，Java 1.7.0_76 - AMI details here）

应用程序环境：Scalding 0.15.0，Scala 2.11.1，Java 1.7.0_80，Hadoop 2.4.0

我已尝试对配置进行各种更改，甚至在EMR中手动安装更高版本的scala版本，但到目前为止，错误并未消失。

请帮忙！谢谢。

→

设置

build.sbt：

scalaVersion := "2.11.1"

ivyScala := ivyScala.value map {
  _.copy(overrideScalaVersion = true)
}

dependencies.sbt：

import AssemblyKeys._

val hadoopVersion = "2.4.0"

val scaldingVersion = "0.15.0"

libraryDependencies ++= Seq(
  "com.twitter" %% "scalding-core" % scaldingVersion,
  "com.twitter" %% "scalding-json" % scaldingVersion,
  "com.twitter" %% "scalding-jdbc" % scaldingVersion,
  "com.github.nscala-time" %% "nscala-time" % "2.0.0",
  "org.apache.hadoop" % "hadoop-common" % hadoopVersion % "provided",
  "org.apache.hadoop" % "hadoop-mapreduce-client-core" % hadoopVersion % "provided"
)

excludedJars in assembly <<= (fullClasspath in assembly) map { cp =>
  val excludes = Set(
  "jsp-api-2.1-6.1.14.jar",
  "jsp-2.1-6.1.14.jar",
  "jasper-compiler-5.5.12.jar",
  "minlog-1.2.jar", // Otherwise causes conflicts with Kyro (which bundles it)
  "janino-2.5.16.jar", // Janino includes a broken signature, and is not needed anyway
  "commons-beanutils-core-1.8.0.jar", // Clash with each other and with commons-collections
  "commons-beanutils-1.7.0.jar", // "
  "hadoop-core-1.2.1.jar", // Provided by Amazon EMR. Delete this line if you're not on EMR
  "hadoop-tools-1.2.1.jar" // "
)
cp filter { jar => excludes(jar.data.getName) }
}

resolvers ++= Seq(
  "Conjars repo" at "http://conjars.org/repo"
)

assembly.sbt

import AssemblyKeys._

assemblySettings

mergeStrategy in assembly := Merge.mergeStrategy

项目/ build.properties：

sbt.version=0.13.1

项目/ assembly.sbt：

addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.11.0")

最后，这是使用sbt-dependency-graph插件的依赖树，看看我是否有正确的版本。对不起，这很长，如果我应该以任何其他方式显示此信息，请推荐建议。

sbt依赖树：

[info] com.abc.aggregator_2.11:0.1-20150628T184441 [S]
[info]   +-com.github.nscala-time:nscala-time_2.11:2.0.0 [S]
[info]   | +-joda-time:joda-time:2.7
[info]   | +-org.joda:joda-convert:1.2
[info]   | 
[info]   +-com.twitter:scalding-core_2.11:0.15.0 [S]
[info]   | +-cascading:cascading-core:2.6.1
[info]   | | +-org.codehaus.janino:janino:2.7.5
[info]   | | | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   | | | 
[info]   | | +-riffle:riffle:0.1-dev
[info]   | | +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   | | 
[info]   | +-cascading:cascading-hadoop:2.6.1
[info]   | | +-cascading:cascading-core:2.6.1
[info]   | |   +-org.codehaus.janino:janino:2.7.5
[info]   | |   | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   | |   | 
[info]   | |   +-riffle:riffle:0.1-dev
[info]   | |   +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   | |   
[info]   | +-cascading:cascading-local:2.6.1
[info]   | | +-cascading:cascading-core:2.6.1
[info]   | | | +-org.codehaus.janino:janino:2.7.5
[info]   | | | | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   | | | | 
[info]   | | | +-riffle:riffle:0.1-dev
[info]   | | | +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   | | | 
[info]   | | +-com.google.guava:guava:14.0.1 (evicted by: 15.0)
[info]   | | +-com.google.guava:guava:15.0
[info]   | | +-org.slf4j:slf4j-api:1.6.6
[info]   | | +-org.slf4j:slf4j-api:1.7.2 (evicted by: 1.6.6)
[info]   | | 
[info]   | +-com.twitter:algebird-core_2.11:0.10.1 [S]
[info]   | | +-com.googlecode.javaewah:JavaEWAH:0.6.6
[info]   | | 
[info]   | +-com.twitter:bijection-core_2.11:0.8.0 [S]
[info]   | +-com.twitter:chill-algebird_2.11:0.6.0 [S]
[info]   | | +-com.esotericsoftware.kryo:kryo:2.21
[info]   | | | +-com.esotericsoftware.minlog:minlog:1.2
[info]   | | | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | | | | +-org.ow2.asm:asm:4.0
[info]   | | | | 
[info]   | | | +-org.objenesis:objenesis:1.2
[info]   | | | 
[info]   | | +-com.twitter:algebird-core_2.11:0.10.0 (evicted by: 0.10.1)
[info]   | | +-com.twitter:algebird-core_2.11:0.10.1 [S]
[info]   | | | +-com.googlecode.javaewah:JavaEWAH:0.6.6
[info]   | | | 
[info]   | | +-com.twitter:chill_2.11:0.6.0 [S]
[info]   | |   +-com.esotericsoftware.kryo:kryo:2.21
[info]   | |   | +-com.esotericsoftware.minlog:minlog:1.2
[info]   | |   | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | |   | | +-org.ow2.asm:asm:4.0
[info]   | |   | | 
[info]   | |   | +-org.objenesis:objenesis:1.2
[info]   | |   | 
[info]   | |   +-com.twitter:chill-java:0.6.0
[info]   | |     +-com.esotericsoftware.kryo:kryo:2.21
[info]   | |       +-com.esotericsoftware.minlog:minlog:1.2
[info]   | |       +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | |       | +-org.ow2.asm:asm:4.0
[info]   | |       | 
[info]   | |       +-org.objenesis:objenesis:1.2
[info]   | |       
[info]   | +-com.twitter:chill-hadoop:0.6.0
[info]   | | +-com.esotericsoftware.kryo:kryo:2.21
[info]   | | | +-com.esotericsoftware.minlog:minlog:1.2
[info]   | | | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | | | | +-org.ow2.asm:asm:4.0
[info]   | | | | 
[info]   | | | +-org.objenesis:objenesis:1.2
[info]   | | | 
[info]   | | +-com.twitter:chill-java:0.6.0
[info]   | | | +-com.esotericsoftware.kryo:kryo:2.21
[info]   | | |   +-com.esotericsoftware.minlog:minlog:1.2
[info]   | | |   +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | | |   | +-org.ow2.asm:asm:4.0
[info]   | | |   | 
[info]   | | |   +-org.objenesis:objenesis:1.2
[info]   | | |   
[info]   | | +-org.slf4j:slf4j-api:1.6.6
[info]   | | 
[info]   | +-com.twitter:chill-java:0.6.0
[info]   | | +-com.esotericsoftware.kryo:kryo:2.21
[info]   | |   +-com.esotericsoftware.minlog:minlog:1.2
[info]   | |   +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | |   | +-org.ow2.asm:asm:4.0
[info]   | |   | 
[info]   | |   +-org.objenesis:objenesis:1.2
[info]   | |   
[info]   | +-com.twitter:chill_2.11:0.6.0 [S]
[info]   | | +-com.esotericsoftware.kryo:kryo:2.21
[info]   | | | +-com.esotericsoftware.minlog:minlog:1.2
[info]   | | | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | | | | +-org.ow2.asm:asm:4.0
[info]   | | | | 
[info]   | | | +-org.objenesis:objenesis:1.2
[info]   | | | 
[info]   | | +-com.twitter:chill-java:0.6.0
[info]   | |   +-com.esotericsoftware.kryo:kryo:2.21
[info]   | |     +-com.esotericsoftware.minlog:minlog:1.2
[info]   | |     +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   | |     | +-org.ow2.asm:asm:4.0
[info]   | |     | 
[info]   | |     +-org.objenesis:objenesis:1.2
[info]   | |     
[info]   | +-com.twitter:maple:0.15.0
[info]   | | +-cascading:cascading-hadoop:2.6.1
[info]   | |   +-cascading:cascading-core:2.6.1
[info]   | |     +-org.codehaus.janino:janino:2.7.5
[info]   | |     | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   | |     | 
[info]   | |     +-riffle:riffle:0.1-dev
[info]   | |     +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   | |     
[info]   | +-com.twitter:scalding-args_2.11:0.15.0 [S]
[info]   | +-com.twitter:scalding-date_2.11:0.15.0 [S]
[info]   | +-com.twitter:scalding-serialization_2.11:0.15.0 [S]
[info]   | +-org.slf4j:slf4j-api:1.6.6
[info]   | 
[info]   +-com.twitter:scalding-jdbc_2.11:0.15.0 [S]
[info]   | +-cascading:cascading-jdbc-core:2.6.0
[info]   | | +-com.google.guava:guava:15.0
[info]   | | 
[info]   | +-cascading:cascading-jdbc-mysql:2.6.0
[info]   | | +-cascading:cascading-jdbc-core:2.6.0
[info]   | | | +-com.google.guava:guava:15.0
[info]   | | | 
[info]   | | +-com.google.guava:guava:15.0
[info]   | | +-mysql:mysql-connector-java:5.1.25
[info]   | | 
[info]   | +-com.twitter:scalding-core_2.11:0.15.0 [S]
[info]   |   +-cascading:cascading-core:2.6.1
[info]   |   | +-org.codehaus.janino:janino:2.7.5
[info]   |   | | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   |   | | 
[info]   |   | +-riffle:riffle:0.1-dev
[info]   |   | +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   |   | 
[info]   |   +-cascading:cascading-hadoop:2.6.1
[info]   |   | +-cascading:cascading-core:2.6.1
[info]   |   |   +-org.codehaus.janino:janino:2.7.5
[info]   |   |   | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   |   |   | 
[info]   |   |   +-riffle:riffle:0.1-dev
[info]   |   |   +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   |   |   
[info]   |   +-cascading:cascading-local:2.6.1
[info]   |   | +-cascading:cascading-core:2.6.1
[info]   |   | | +-org.codehaus.janino:janino:2.7.5
[info]   |   | | | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   |   | | | 
[info]   |   | | +-riffle:riffle:0.1-dev
[info]   |   | | +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   |   | | 
[info]   |   | +-com.google.guava:guava:14.0.1 (evicted by: 15.0)
[info]   |   | +-com.google.guava:guava:15.0
[info]   |   | +-org.slf4j:slf4j-api:1.6.6
[info]   |   | +-org.slf4j:slf4j-api:1.7.2 (evicted by: 1.6.6)
[info]   |   | 
[info]   |   +-com.twitter:algebird-core_2.11:0.10.1 [S]
[info]   |   | +-com.googlecode.javaewah:JavaEWAH:0.6.6
[info]   |   | 
[info]   |   +-com.twitter:bijection-core_2.11:0.8.0 [S]
[info]   |   +-com.twitter:chill-algebird_2.11:0.6.0 [S]
[info]   |   | +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   | | +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   | | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   | | | +-org.ow2.asm:asm:4.0
[info]   |   | | | 
[info]   |   | | +-org.objenesis:objenesis:1.2
[info]   |   | | 
[info]   |   | +-com.twitter:algebird-core_2.11:0.10.0 (evicted by: 0.10.1)
[info]   |   | +-com.twitter:algebird-core_2.11:0.10.1 [S]
[info]   |   | | +-com.googlecode.javaewah:JavaEWAH:0.6.6
[info]   |   | | 
[info]   |   | +-com.twitter:chill_2.11:0.6.0 [S]
[info]   |   |   +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   |   | +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   |   | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   |   | | +-org.ow2.asm:asm:4.0
[info]   |   |   | | 
[info]   |   |   | +-org.objenesis:objenesis:1.2
[info]   |   |   | 
[info]   |   |   +-com.twitter:chill-java:0.6.0
[info]   |   |     +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   |       +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   |       +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   |       | +-org.ow2.asm:asm:4.0
[info]   |   |       | 
[info]   |   |       +-org.objenesis:objenesis:1.2
[info]   |   |       
[info]   |   +-com.twitter:chill-hadoop:0.6.0
[info]   |   | +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   | | +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   | | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   | | | +-org.ow2.asm:asm:4.0
[info]   |   | | | 
[info]   |   | | +-org.objenesis:objenesis:1.2
[info]   |   | | 
[info]   |   | +-com.twitter:chill-java:0.6.0
[info]   |   | | +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   | |   +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   | |   +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   | |   | +-org.ow2.asm:asm:4.0
[info]   |   | |   | 
[info]   |   | |   +-org.objenesis:objenesis:1.2
[info]   |   | |   
[info]   |   | +-org.slf4j:slf4j-api:1.6.6
[info]   |   | 
[info]   |   +-com.twitter:chill-java:0.6.0
[info]   |   | +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   |   +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   |   +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   |   | +-org.ow2.asm:asm:4.0
[info]   |   |   | 
[info]   |   |   +-org.objenesis:objenesis:1.2
[info]   |   |   
[info]   |   +-com.twitter:chill_2.11:0.6.0 [S]
[info]   |   | +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   | | +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   | | +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   | | | +-org.ow2.asm:asm:4.0
[info]   |   | | | 
[info]   |   | | +-org.objenesis:objenesis:1.2
[info]   |   | | 
[info]   |   | +-com.twitter:chill-java:0.6.0
[info]   |   |   +-com.esotericsoftware.kryo:kryo:2.21
[info]   |   |     +-com.esotericsoftware.minlog:minlog:1.2
[info]   |   |     +-com.esotericsoftware.reflectasm:reflectasm:1.07
[info]   |   |     | +-org.ow2.asm:asm:4.0
[info]   |   |     | 
[info]   |   |     +-org.objenesis:objenesis:1.2
[info]   |   |     
[info]   |   +-com.twitter:maple:0.15.0
[info]   |   | +-cascading:cascading-hadoop:2.6.1
[info]   |   |   +-cascading:cascading-core:2.6.1
[info]   |   |     +-org.codehaus.janino:janino:2.7.5
[info]   |   |     | +-org.codehaus.janino:commons-compiler:2.7.5
[info]   |   |     | 
[info]   |   |     +-riffle:riffle:0.1-dev
[info]   |   |     +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]   |   |     
[info]   |   +-com.twitter:scalding-args_2.11:0.15.0 [S]
[info]   |   +-com.twitter:scalding-date_2.11:0.15.0 [S]
[info]   |   +-com.twitter:scalding-serialization_2.11:0.15.0 [S]
[info]   |   +-org.slf4j:slf4j-api:1.6.6
[info]   |   
[info]   +-com.twitter:scalding-json_2.11:0.15.0 [S]
[info]     +-com.fasterxml.jackson.module:jackson-module-scala_2.11:2.4.2 [S]
[info]     | +-com.fasterxml.jackson.core:jackson-annotations:2.4.2
[info]     | +-com.fasterxml.jackson.core:jackson-core:2.4.2
[info]     | +-com.fasterxml.jackson.core:jackson-databind:2.4.2
[info]     | | +-com.fasterxml.jackson.core:jackson-annotations:2.4.0 (evicted by: 2.4.2)
[info]     | | +-com.fasterxml.jackson.core:jackson-annotations:2.4.2
[info]     | | +-com.fasterxml.jackson.core:jackson-core:2.4.2
[info]     | | 
[info]     | +-com.google.code.findbugs:jsr305:2.0.1
[info]     | +-com.google.guava:guava:15.0
[info]     | +-com.thoughtworks.paranamer:paranamer:2.6
[info]     | +-org.scala-lang:scala-reflect:2.11.2 [S]
[info]     | 
[info]     +-com.twitter:scalding-core_2.11:0.15.0 [S]
[info]     | +-cascading:cascading-core:2.6.1
[info]     | | +-org.codehaus.janino:janino:2.7.5
[info]     | | | +-org.codehaus.janino:commons-compiler:2.7.5
[info]     | | | 
[info]     | | +-riffle:riffle:0.1-dev
[info]     | | +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]     | | 
[info]     | +-cascading:cascading-hadoop:2.6.1
[info]     | | +-cascading:cascading-core:2.6.1
[info]     | |   +-org.codehaus.janino:janino:2.7.5
[info]     | |   | +-org.codehaus.janino:commons-compiler:2.7.5
[info]     | |   | 
[info]     | |   +-riffle:riffle:0.1-dev
[info]     | |   +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]     | |   
[info]     | +-cascading:cascading-local:2.6.1
[info]     | | +-cascading:cascading-core:2.6.1
[info]     | | | +-org.codehaus.janino:janino:2.7.5
[info]     | | | | +-org.codehaus.janino:commons-compiler:2.7.5
[info]     | | | | 
[info]     | | | +-riffle:riffle:0.1-dev
[info]     | | | +-thirdparty:jgrapht-jdk1.6:0.8.1
[info]     | | | 
[info]     | | +-com.google.guava:guava:14.0.1 (evicted by: 15.0)
[info]     | | +-com.google.guava:guava:15.0
[info]     | | +-org.slf4j:slf4j-api:1.6.6
[info]     | | +-org.slf4j:slf4j-api:1.7.2 (evicted by: 1.6.6)
[info]     | | 
[info]     | +-com.twitter:algebird-core_2.11:0.10.1 [S]
[info]     | | +-com.googlecode.javaewah:JavaEWAH:0.6.6
[info]     | | 
[info]     | +-com.twitter:bijection-core_2.11:0.8.0 [S]
[info]     | +-com.twitter:chill-algebird_2.11:0.6.0 [S]
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[success] Total time: 12 s, completed Jun 28, 2015 11:44:54 AM

根据要求提供更多信息：

我使用'sbt assembly'构建胖jar，目前我正在使用带有“Custom JAR”步骤的AWS控制台在自动化过程之前对其进行测试。

JAR location: s3://path/to/jar/data-aggregator-0.1.jar
Arguments: com.abc.aggregation.job.DataAggregation --hdfs --input s3n://path/to/input/data/file.json --output s3n://path/to/input/data/file.txt

更新：

我能够通过提供指向scala 2.11.1 jar的HADOOP_CLASSPATH来解决上述错误，同时从sbt汇编步骤中排除相同内容。这是使用hadoop-user-env.sh传递的，似乎适用于主节点。然而，一旦它到达映射器步骤它再次失败与另一个Scala错误。现在我被困在这一步。

假设这是因为映射器和Reducer没有看到HADOOP_CLASSPATH更新，我尝试将-libjars参数包含在hadoop master本身的scala jar文件中。但是这个（下面）似乎没有用。

 JAR location: s3://path/to/jar/data-aggregator-0.1.jar
Arguments: com.abc.aggregation.job.DataAggregation -libjars /usr/share/scala/lib/scala-library.jar,/usr/share/scala/lib/scala-reflect.jar --hdfs --input s3n://path/to/input/data/file.json --output s3n://path/to/input/data/file.txt

Answer 1

在遇到类似问题之后......这显然是jar依赖关系之间的版本不匹配。我通过首先登录到EMR主机来修复它，然后打开spark-shell显示正在使用的确切scala版本。现在用它在pom文件中配置你自己的依赖项，它应该可以工作。

Answer 2

固定。所以在EMR实例中确实存在多个scala jar，它们并非来自我的应用程序jar。

除了/ usr / share / scala下的2.11二进制文件的安装位置之外，2.10 jar隐藏在/ usr / share / aws / emr / emrfs / lib中。所以我在群集的所有实例中摆脱了2.10 jar，我的工作成功完成。现在我将为此创建一个引导操作。

$ sudo find / -name "scala-library-2.10.*.jar" -exec rm -rf {} \;

仅供参考，这些是它出现的路径：

[ec2-user@ip-172-31-72-130 ~]$ sudo find / -name "scala-library-2.11.*.jar"

/home/hadoop/.versions/hbase-0.94.18/lib/scala-library-2.11.0.jar
/usr/share/doc/scala/api/jars/scala-library-2.11.1-javadoc.jar

[ec2-user@ip-172-31-72-130 ~]$ sudo find / -name "scala-library-2.10.*.jar"

/usr/share/aws/emr/emrfs/lib/scala-library-2.10.5.jar

EMR上的烫伤：Hadoop作业因NoSuchMethodError而失败：scala.Predef $ .ArrowAssoc（Ljava / lang / Object;）Ljava / lang / Object;

2 个答案: