/usr/bin/env: python3: No such file or directory 问题

# /usr/bin/env: python3: No such file or directory

在执行mvn site命令时，出现了如下错误提示：

/usr/bin/env: python3: No such file or directory

完整的报错日志如下：

 Toolchains are ignored, 'executable' parameter is set to /opt/modules/bigtop/build/hadoop/rpm/BUILD/hadoop-3.3.4-src/hadoop-common-project/hadoop-common/../../dev-support/bin/shelldocs
[DEBUG] Executing command line: [/opt/modules/bigtop/build/hadoop/rpm/BUILD/hadoop-3.3.4-src/hadoop-common-project/hadoop-common/../../dev-support/bin/shelldocs, --skipprnorep, --output, /opt/modules/bigtop/build/hadoop/rpm/BUILD/hadoop-3.3.4-src/hadoop-common-project/hadoop-common/src/site/markdown/UnixShellAPI.md, --input, /opt/modules/bigtop/build/hadoop/rpm/BUILD/hadoop-3.3.4-src/hadoop-common-project/hadoop-common/src/main/bin/hadoop-functions.sh]
/usr/bin/env: python3: No such file or directory
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for Apache Hadoop Main 3.3.4:
[INFO]
[INFO] Apache Hadoop Main ................................. SUCCESS [25:20 min]
[INFO] Apache Hadoop Build Tools .......................... SUCCESS [  0.005 s]
[INFO] Apache Hadoop Project POM .......................... SUCCESS [  6.812 s]
[INFO] Apache Hadoop Annotations .......................... SUCCESS [  1.180 s]
[INFO] Apache Hadoop Project Dist POM ..................... SUCCESS [  1.104 s]
[INFO] Apache Hadoop Assemblies ........................... SUCCESS [  1.158 s]
[INFO] Apache Hadoop Maven Plugins ........................ SUCCESS [  8.255 s]
[INFO] Apache Hadoop MiniKDC .............................. SUCCESS [  3.304 s]
[INFO] Apache Hadoop Auth ................................. SUCCESS [ 18.566 s]
[INFO] Apache Hadoop Auth Examples ........................ SUCCESS [  4.183 s]
[INFO] Apache Hadoop Common ............................... FAILURE [ 13.290 s]
[INFO] Apache Hadoop NFS .................................. SKIPPED
[INFO] Apache Hadoop KMS .................................. SKIPPED
[INFO] Apache Hadoop Registry ............................. SKIPPED
[INFO] Apache Hadoop Common Project ....................... SKIPPED
[INFO] Apache Hadoop HDFS Client .......................... SKIPPED
[INFO] Apache Hadoop HDFS ................................. SKIPPED
[INFO] Apache Hadoop HDFS Native Client ................... SKIPPED
[INFO] Apache Hadoop HttpFS ............................... SKIPPED
[INFO] Apache Hadoop HDFS-NFS ............................. SKIPPED
[INFO] Apache Hadoop HDFS-RBF ............................. SKIPPED
[INFO] Apache Hadoop HDFS Project ......................... SKIPPED
[INFO] Apache Hadoop YARN ................................. SKIPPED
[INFO] Apache Hadoop YARN API ............................. SKIPPED
[INFO] Apache Hadoop YARN Common .......................... SKIPPED
[INFO] Apache Hadoop YARN Server .......................... SKIPPED
[INFO] Apache Hadoop YARN Server Common ................... SKIPPED
[INFO] Apache Hadoop YARN NodeManager ..................... SKIPPED
[INFO] Apache Hadoop YARN Web Proxy ....................... SKIPPED
[INFO] Apache Hadoop YARN ApplicationHistoryService ....... SKIPPED
[INFO] Apache Hadoop YARN Timeline Service ................ SKIPPED
[INFO] Apache Hadoop YARN ResourceManager ................. SKIPPED
[INFO] Apache Hadoop YARN Server Tests .................... SKIPPED
[INFO] Apache Hadoop YARN Client .......................... SKIPPED
[INFO] Apache Hadoop YARN SharedCacheManager .............. SKIPPED
[INFO] Apache Hadoop YARN Timeline Plugin Storage ......... SKIPPED
[INFO] Apache Hadoop YARN TimelineService HBase Backend ... SKIPPED
[INFO] Apache Hadoop YARN TimelineService HBase Common .... SKIPPED
[INFO] Apache Hadoop YARN TimelineService HBase Client .... SKIPPED
[INFO] Apache Hadoop YARN TimelineService HBase Servers ... SKIPPED
[INFO] Apache Hadoop YARN TimelineService HBase Server 1.2  SKIPPED
[INFO] Apache Hadoop YARN TimelineService HBase tests ..... SKIPPED
[INFO] Apache Hadoop YARN Router .......................... SKIPPED
[INFO] Apache Hadoop YARN TimelineService DocumentStore ... SKIPPED
[INFO] Apache Hadoop YARN Applications .................... SKIPPED
[INFO] Apache Hadoop YARN DistributedShell ................ SKIPPED
[INFO] Apache Hadoop YARN Unmanaged Am Launcher ........... SKIPPED
[INFO] Apache Hadoop MapReduce Client ..................... SKIPPED
[INFO] Apache Hadoop MapReduce Core ....................... SKIPPED
[INFO] Apache Hadoop MapReduce Common ..................... SKIPPED
[INFO] Apache Hadoop MapReduce Shuffle .................... SKIPPED
[INFO] Apache Hadoop MapReduce App ........................ SKIPPED
[INFO] Apache Hadoop MapReduce HistoryServer .............. SKIPPED
[INFO] Apache Hadoop MapReduce JobClient .................. SKIPPED
[INFO] Apache Hadoop Mini-Cluster ......................... SKIPPED
[INFO] Apache Hadoop YARN Services ........................ SKIPPED
[INFO] Apache Hadoop YARN Services Core ................... SKIPPED
[INFO] Apache Hadoop YARN Services API .................... SKIPPED
[INFO] Apache Hadoop YARN Application Catalog ............. SKIPPED
[INFO] Apache Hadoop YARN Application Catalog Webapp ...... SKIPPED
[INFO] Apache Hadoop YARN Application Catalog Docker Image  SKIPPED
[INFO] Apache Hadoop YARN Application MaWo ................ SKIPPED
[INFO] Apache Hadoop YARN Application MaWo Core ........... SKIPPED
[INFO] Apache Hadoop YARN Site ............................ SKIPPED
[INFO] Apache Hadoop YARN Registry ........................ SKIPPED
[INFO] Apache Hadoop YARN UI .............................. SKIPPED
[INFO] Apache Hadoop YARN CSI ............................. SKIPPED
[INFO] Apache Hadoop YARN Project ......................... SKIPPED
[INFO] Apache Hadoop MapReduce HistoryServer Plugins ...... SKIPPED
[INFO] Apache Hadoop MapReduce NativeTask ................. SKIPPED
[INFO] Apache Hadoop MapReduce Uploader ................... SKIPPED
[INFO] Apache Hadoop MapReduce Examples ................... SKIPPED
[INFO] Apache Hadoop MapReduce ............................ SKIPPED
[INFO] Apache Hadoop MapReduce Streaming .................. SKIPPED
[INFO] Apache Hadoop Distributed Copy ..................... SKIPPED
[INFO] Apache Hadoop Client Aggregator .................... SKIPPED
[INFO] Apache Hadoop Dynamometer Workload Simulator ....... SKIPPED
[INFO] Apache Hadoop Dynamometer Cluster Simulator ........ SKIPPED
[INFO] Apache Hadoop Dynamometer Block Listing Generator .. SKIPPED
[INFO] Apache Hadoop Dynamometer Dist ..................... SKIPPED
[INFO] Apache Hadoop Dynamometer .......................... SKIPPED
[INFO] Apache Hadoop Archives ............................. SKIPPED
[INFO] Apache Hadoop Archive Logs ......................... SKIPPED
[INFO] Apache Hadoop Rumen ................................ SKIPPED
[INFO] Apache Hadoop Gridmix .............................. SKIPPED
[INFO] Apache Hadoop Data Join ............................ SKIPPED
[INFO] Apache Hadoop Extras ............................... SKIPPED
[INFO] Apache Hadoop Pipes ................................ SKIPPED
[INFO] Apache Hadoop OpenStack support .................... SKIPPED
[INFO] Apache Hadoop Amazon Web Services support .......... SKIPPED
[INFO] Apache Hadoop Kafka Library support ................ SKIPPED
[INFO] Apache Hadoop Azure support ........................ SKIPPED
[INFO] Apache Hadoop Aliyun OSS support ................... SKIPPED
[INFO] Apache Hadoop Scheduler Load Simulator ............. SKIPPED
[INFO] Apache Hadoop Resource Estimator Service ........... SKIPPED
[INFO] Apache Hadoop Azure Data Lake support .............. SKIPPED
[INFO] Apache Hadoop Image Generation Tool ................ SKIPPED
[INFO] Apache Hadoop Tools Dist ........................... SKIPPED
[INFO] Apache Hadoop Tools ................................ SKIPPED
[INFO] Apache Hadoop Client API ........................... SKIPPED
[INFO] Apache Hadoop Client Runtime ....................... SKIPPED
[INFO] Apache Hadoop Client Packaging Invariants .......... SKIPPED
[INFO] Apache Hadoop Client Test Minicluster .............. SKIPPED
[INFO] Apache Hadoop Client Packaging Invariants for Test . SKIPPED
[INFO] Apache Hadoop Client Packaging Integration Tests ... SKIPPED
[INFO] Apache Hadoop Distribution ......................... SKIPPED
[INFO] Apache Hadoop Client Modules ....................... SKIPPED
[INFO] Apache Hadoop Cloud Storage ........................ SKIPPED
[INFO] Apache Hadoop Tencent COS Support .................. SKIPPED
[INFO] Apache Hadoop Cloud Storage Project ................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  26:35 min
[INFO] Finished at: 2024-07-18T15:41:44Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.3.1:exec (shelldocs) on project hadoop-common: Command execution failed.: Process exited with an error: 127 (Exit value: 127) -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.3.1:exec (shelldocs) on project hadoop-common: Command execution failed.
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    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 org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.maven.plugin.MojoExecutionException: Command execution failed.
    at org.codehaus.mojo.exec.ExecMojo.execute (ExecMojo.java:303)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    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 org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.commons.exec.ExecuteException: Process exited with an error: 127 (Exit value: 127)
    at org.apache.commons.exec.DefaultExecutor.executeInternal (DefaultExecutor.java:402)
    at org.apache.commons.exec.DefaultExecutor.execute (DefaultExecutor.java:164)
    at org.codehaus.mojo.exec.ExecMojo.executeCommandLine (ExecMojo.java:750)
    at org.codehaus.mojo.exec.ExecMojo.execute (ExecMojo.java:292)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    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 org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR]
[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/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -rf :hadoop-common
error: Bad exit status from /var/tmp/rpm-tmp.TNsQdj (%build)

    Bad exit status from /var/tmp/rpm-tmp.TNsQdj (%build)

RPM build errors:

> Task :hadoop-rpm FAILED

FAILURE: Build failed with an exception.

* Where:
Script '/opt/modules/bigtop/packages.gradle' line: 529

* What went wrong:
Execution failed for task ':hadoop-rpm'.
> Process 'command 'rpmbuild'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1h 25m 59s
30 actionable tasks: 30 executed

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# 问题分析：

执行mvn site命令时，Maven需要调用Python3环境来执行一些脚本。然而，系统中似乎缺少Python3，或者没有正确配置Python3的环境，导致Maven无法找到python3命令，从而引发该错误。

# 解决办法：

为了解决这个问题，我们可以通过以下两种方式之一来确保Python3环境被正确配置：

使用 Conda 创建Python虚拟环境
使用 virtualenv 创建Python虚拟环境

这两种方法都能够为Maven提供一个有效的Python3环境。

# 使用Conda创建Python虚拟环境

提示

Conda是一种常用的环境管理工具，可以方便地安装、管理和切换不同版本的Python环境。以下是使用Conda创建Python虚拟环境的步骤：

安装Conda（如果尚未安装） 如果您还没有安装Conda，可以通过Anaconda官网 (opens new window)下载并安装Anaconda。
创建Python3虚拟环境 使用以下命令创建一个新的Python3虚拟环境：
```
conda create -n myenv python=3.8
```
1
这里，myenv是虚拟环境的名称，您可以根据需要更改为其他名称，python=3.8指定使用Python3.8版本。
激活虚拟环境 使用以下命令激活刚刚创建的虚拟环境：
```
conda activate myenv
```
1
验证Python3环境是否配置成功 在虚拟环境中，输入以下命令确认Python3已正确安装：
```
python --version
```
1
安装Python依赖 在虚拟环境中，您可能还需要安装某些Python依赖，您可以使用以下命令安装所需的包：
```
pip install <package_name>
```
1
执行Maven命令 现在您可以重新运行Maven命令，应该不会再出现python3: No such file or directory错误。

# 使用`virtualenv`创建Python虚拟环境

提示

virtualenv是另一个用于创建虚拟Python环境的工具，它比Conda更轻量，但也非常有效。以下是使用virtualenv创建Python虚拟环境的步骤：

安装virtualenv（如果尚未安装） 如果您还没有安装virtualenv，可以使用以下命令安装：
```
pip install virtualenv
```
1
创建Python3虚拟环境 使用以下命令创建一个新的Python3虚拟环境：
```
virtualenv -p python3 myenv
```
1
这里，myenv是虚拟环境的名称，您可以根据需要更改为其他名称。
激活虚拟环境 在Linux或MacOS系统上，使用以下命令激活虚拟环境：
```
source myenv/bin/activate
```
1
在Windows系统上，使用以下命令：
```
myenv\Scripts\activate
```
1
验证Python3环境是否配置成功 输入以下命令确认Python3已正确安装：
```
python --version
```
1
执行Maven命令 激活虚拟环境后，您可以重新执行Maven命令，错误应该已经解决。

# 进一步排查

如果您依然遇到问题，可以检查以下内容：

注意

确认python3命令在系统中可用。可以通过执行which python3命令查看其路径。
检查MAVEN_OPTS环境变量是否正确配置。如果MAVEN_OPTS中设置了PYTHON环境变量，确保其指向正确的Python路径。

# 我们推荐使用ambari-env (opens new window)

笔记

在Ambari和Bigtop编译过程中，环境配置问题时常出现，尤其是在配置Python环境时。为了解决这些常见问题，我们推荐使用ambari-env (opens new window)工具集。这个工具集为您提供了一套完整的环境配置解决方案，自动处理Python版本、依赖包以及其他环境配置，让您能够专注于项目本身，而不必担心配置错误或环境不匹配的问题。

通过使用ambari-env，您可以避免手动处理环境配置的麻烦，工具集会自动为Ambari和Bigtop提供必要的配置，并确保其顺利编译。

#Python3 #环境配置 #Maven

error triple-beam@1.4.1: The engine "node" is incompatible with this module 错误→

/usr/bin/env: python3: No such file or directory 问题