編譯Hadoop本機-在Maven插件中發現錯誤

Question

我正在嘗試編譯Hadoop，而ant插件中存在Maven錯誤。 我從沒使用過Maven或ant，而且該錯誤似乎也沒有提供有關錯誤所在的任何指示。 錯誤輸出在帖子的末尾。

我已經在pom文件中搜索了maven-antrun-plugin（有54個帶有該字符串的pom.xml文件）。 該錯誤表明它位於hadoop-common但是在該文件中卻出現了幾次maven-antrun-plugin。 我不知道是哪個問題，而且Maven錯誤掩蓋了任何失敗的命令所給出的實際錯誤消息。

我如何：

1. 准確找到引起錯誤的行
2. 獲取實際的錯誤輸出，而不是Maven的無用錯誤

這是錯誤：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (make) on project hadoop-common: An Ant BuildException has occured: exec returned: 2 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (make) on project hadoop-common: An Ant BuildException has occured: exec returned: 2
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: An Ant BuildException has occured: exec returned: 2
    at org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:283)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
    ... 19 more
Caused by: /Users/justinmrkva/hadoop-2.2.0-src/hadoop-common-project/hadoop-common/target/antrun/build-main.xml:7: exec returned: 2
    at org.apache.tools.ant.taskdefs.ExecTask.runExecute(ExecTask.java:650)
    at org.apache.tools.ant.taskdefs.ExecTask.runExec(ExecTask.java:676)
    at org.apache.tools.ant.taskdefs.ExecTask.execute(ExecTask.java:502)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
    at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    at org.apache.tools.ant.Task.perform(Task.java:348)
    at org.apache.tools.ant.Target.execute(Target.java:390)
    at org.apache.tools.ant.Target.performTasks(Target.java:411)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1397)
    at org.apache.tools.ant.Project.executeTarget(Project.java:1366)
    at org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:270)
    ... 21 more

Answer 1

確保已在計算機中安裝了cmake。 如果您使用的是Ubuntu，則可以使用以下命令安裝cmake

sudo apt-get install cmake

安裝完后，嘗試編譯...

Answer 2

mvn -e -X ....

可以幫助您找到錯誤，特別是'-X'標志。 mvn --help ：

-X,--debug                        Produce execution debug output

不過，它將產生很多輸出。

Answer 3

正如@ user3540568所建議的那樣，您可能遇到了cmake問題。 一旦遇到此問題，我就可以向上滾動查看Maven輸出並找到一個錯誤，該錯誤有效地表明在路徑中未找到“ cmake”。 它看起來像這樣：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (make) on project hadoop-common: An Ant BuildException has occured: Execute failed: java.io.IOException: Cannot run program "cmake" (in directory "/home/users/tharsch/git/hadoop-common/hadoop-common-project/hadoop-common/target/native"): error=2, No such file or directory -> [Help 1]

但是，當收到該消息時，我沒有與-e或-X一起運行。

這篇博客文章詳細描述了從源代碼構建hadoop 2.2.0所需要的內容。