使用Maven错误构建Hadoop

当我尝试使用以下方法构建hadoop时：

mvn安装-e-DskipTests

它总是抛出以下错误：

[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /home/xiu/myGit/hadoop2/hadoop-mr1-project/hadoop-mr1/src/test/java/org/apache/hadoop/mapreduce/security/TestTokenCache.java:[153,4] getDelegationTokenSecretManager() is not public in org.apache.hadoop.hdfs.server.namenode.FSNamesystem; cannot be accessed from outside package
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Hadoop MR1 ................................. FAILURE [3.144s]
[INFO] Apache Hadoop MR1 Examples ........................ SKIPPED
[INFO] Apache Hadoop MR1 Project ......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.353s
[INFO] Finished at: Thu Jul 18 11:01:30 PDT 2013
[INFO] Final Memory: 32M/100M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:testCompile (default-testCompile) on project hadoop-mr1: Compilation failure
[ERROR] /home/xiu/myGit/hadoop2/hadoop-mr1-project/hadoop-mr1/src/test/java/org/apache/hadoop/mapreduce/security/TestTokenCache.java:[153,4] getDelegationTokenSecretManager() is not public in org.apache.hadoop.hdfs.server.namenode.FSNamesystem; cannot be accessed from outside package
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

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我尝试过清理并重新安装不同版本的maven，但运气不佳。有专家知道这是怎么回事吗

似乎是Maven编译器插件抱怨Hadoop

FSNameSystem

中的

getDelegationTokenSecretManager（）

方法由于方法可见性而无法访问，即它不是公共的：

[ERROR] /home/xiu/myGit/hadoop2/hadoop-mr1-project/hadoop-mr1/src/test/java/org/apache/hadoop/mapreduce/security/TestTokenCache.java:[153,4] getDelegationTokenSecretManager() is not public in org.apache.hadoop.hdfs.server.namenode.FSNamesystem; cannot be accessed from outside package
[INFO] 1 error

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我建议您检查pom.xml中定义的Hadoop版本，并再次检查该方法在Hadoop版本JavaDoc中是否真正可访问。

我在Hadoop 2.2.0源代码构建过程中遇到了相同的问题。在“mvn安装-DskipTests”过程中，此错误出现在“Hadoop Auth”文件夹中。 从某个地方（我不记得从哪里）我知道这个Hadoop Auth文件夹的pom.xml中缺少一个依赖项

依赖性是

<dependency>
  <groupId>org.mortbay.jetty</groupId>
  <artifactId>jetty-util</artifactId>
  <scope>test</scope>
</dependency>

org.mortbay.jetty
码头
测试

我添加了这个依赖项，并再次尝试“mvn安装-DskipTests”。我的错误解决了

---

您只需尝试在“ApacheHadoopMR1”的pom.xml中添加此依赖项。您的错误可能会解决

如果没有

-DskipTests

（我正在运行

mvn-package-Pdist，native-Dtar

），此依赖项似乎也是必需的