April 2022
Beginner to intermediate
486 pages
10h 22m
Chinese
Content preview from 云端基因组学
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226
｜
第
8
章
不论你是以一次性模式还是服务器模式运行，都能享受到
Cromwell
系统为提高效
率和可扩展性而实现的有趣的特色功能，但是没有人愿意在像本书这样的书中阅读
详细功能列表，因此我们继续往下讲解动手练习部分，讲解过程涉及这些关键功能
时再介绍。
8.2
安装和配置
Cromwell
系统
本章，我们研究和执行几个用
WDL
编写的工作流，熟悉该语言的基本结构，并学
习
Cromwell
系统如何管理输入、输出和日志等内容。为衔接前几章，我们仍在第
4
、
5
章使用的
GCP
计算引擎虚拟机上运行
Cromwell
系统。然而，我们不再在
GATK
容器内运行任何命令，而是直接在虚拟机环境安装和运行
Cromwell
系统。
你需要运行几条安装命令，因为安装
Cromwell
系统依赖
Java
，而我们正要用的虚
拟机未预装
Java
。安装
Java
，需要通过
SSH
登录你的虚拟机，就像前几章你做的那
样。请记住，直接打开计算引擎，就可以在
GCP
平台控制台找到你的虚拟机实例列
表；还可以在控制台左侧的
GCP
服务菜单，点击“
Compute Engine
”（
https://oreil.
ly/sGeug
），打开虚拟机实例列表，如忘记
URL
的话，可使用该方法。
在虚拟机的命令提示符后输
入 java -version
。你应该会看到以下输出：
$ java -version
Command
’
java
’
not found, but can be installed with:
apt install openjdk-11-jre-headless ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.