1. 报错背景

在 Bigtop 环境下编译 Sqoop 1.4.7 并打 RPM 包时，经常遇到如下依赖性报错：

error: Failed build dependencies:
        xmlto is needed by sqoop_3_2_0-1.4.7-2.el8.noarch

此问题在 Rocky Linux、CentOS Stream 8、AlmaLinux 等 RHEL8+ 系列环境中尤为常见，核心原因是系统未默认安装 xmlto 工具，而 Sqoop 打包过程中需要该依赖生成部分文档。

2. 典型报错日志还原

编译输出片段如下：

Download https://mirrors.huaweicloud.com/apache//sqoop/1.4.7//sqoop-1.4.7.tar.gz

> Task :sqoop-tar
Copy /opt/modules/bigtop/dl/sqoop-1.4.7.tar.gz to /opt/modules/bigtop/build/sqoop/tar/sqoop-1.4.7.tar.gz

> Task :sqoop-srpm
Copying common RPM SOURCES from: /opt/modules/bigtop/bigtop-packages/src/common/sqoop (excluding 1.4.7) to /opt/modules/bigtop/build/sqoop/rpm/SOURCES
No version-specific directory found at: /opt/modules/bigtop/bigtop-packages/src/common/sqoop/1.4.7
Wrote: /opt/modules/bigtop/build/sqoop/rpm/SRPMS/sqoop_3_2_0-1.4.7-2.el8.src.rpm

> Task :sqoop-rpm FAILED
error: Failed build dependencies:
        xmlto is needed by sqoop_3_2_0-1.4.7-2.el8.noarch
Installing /opt/modules/bigtop/output/sqoop/sqoop_3_2_0-1.4.7-2.el8.src.rpm

FAILURE: Build failed with an exception.

* Where:
Script '/opt/modules/bigtop/packages.gradle' line: 545

* What went wrong:
Execution failed for task ':sqoop-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 27s
80 actionable tasks: 80 executed

3. 解决思路与操作步骤

问题分析

xmlto 是一款常用的文档转换工具（XML 转 man/help/doc），Sqoop RPM 规范文件（spec）在 %prep、%build 或 %install 阶段会用到它。如未预装，则编译直接失败。

3.1 一步解决方案

只需在目标环境提前安装 xmlto 即可：

sudo dnf install -y xmlto
# 或在 CentOS 7/8:
sudo yum install -y xmlto

提示

如遇镜像问题，建议使用阿里云、华为云等国内 yum 源替换默认配置，提升依赖获取速度。

3.2 补充依赖项推荐

为保证大部分 RPM 构建工具链完整，建议一次性安装如下依赖，避免后续反复报错：

sudo dnf install -y xmlto asciidoc docbook2X