هر روز، شرکت‌ها با چالش مقیاس‌پذیری برنامه‌های حیاتی خود روبه‌رو هستند. با افزایش حجم ترافیک و تقاضای داده، این برنامه‌ها پیچیده‌تر و شکننده‌تر می‌شوند، که این امر منجر به افزایش ریسک و کاهش دسترسی‌پذیری می‌گردد. در عصر محبوبیت نرم‌افزار به‌عنوان خدمت (SaaS)، اهمیت مقیاس‌پذیری بیش از هر زمان دیگری احساس می‌شود.

این راهنمای عملی که با تمرکز گسترده‌تری بر الگوهای معماری مدرن مانند مایکروسرویس‌ها و رایانش ابری به‌روزرسانی شده است، تکنیک‌هایی برای ساخت سامانه‌هایی ارائه می‌دهد که قادر به پاسخ‌گویی به حجم عظیمی از ترافیک، داده و تقاضا هستند—بدون آن‌که کیفیت مورد انتظار کاربران تحت تأثیر قرار گیرد. معماران نرم‌افزار، مدیران و رهبران تیم‌های فنی با استفاده از این کتاب خواهند آموخت چگونه برنامه‌هایی در مقیاس وسیع طراحی کنند که پایدارتر، روان‌تر و قابل اطمینان‌تر اجرا شوند تا نیازهای کاربران را پاسخ دهند.

مطالب کلیدی کتاب شامل موارد زیر است:

• آشنایی با تأثیر مقیاس‌پذیری بر دسترسی‌پذیری سرویس‌ها، دلایل اهمیت آن و راهکارهای بهبود آن
• بررسی معماری مدرن مبتنی بر سرویس برای تضمین دسترسی بالا و کاهش پیامدهای شکست سرویس‌ها
• معرفی الگوی STOSA (معماری سرویس تحت مالکیت تیم منفرد) به‌عنوان مدلی برای مقیاس‌دهی هم‌زمان به سازمان توسعه‌دهنده و برنامه کاربردی
• درک، سنجش و کاهش ریسک در سامانه‌ها
• بهره‌گیری از رایانش ابری برای ساخت برنامه‌هایی با مقیاس‌پذیری بالا

Every day, companies struggle to scale critical applications. As traffic volume and data demands increase, these applications become more complicated and brittle, exposing risks and compromising availability. With the popularity of software as a service, scaling has never been more important.

Updated with an expanded focus on modern architecture paradigms such as microservices and cloud computing, this practical guide provides techniques for building systems that can handle huge quantities of traffic, data, and demand—without affecting the quality your customers expect. Architects, managers, and directors in engineering and operations organizations will learn how to build applications at scale that run more smoothly and reliably to meet the needs of customers.

•  Learn how scaling affects the availability of your services, why that matters, and how to improve it

•  Dive into a modern service-based application architecture that ensures high availability and reduces the effects of service failures

•  Explore the Single Team Owned Service Architecture paradigm (STOSA)—a model for scaling your development organization in tandem with your application

•  Understand, measure, and mitigate risk in your systems

•  Use the cloud to build highly scalable applications

Table of Contents

Part I. Tenet 1. Availability: Maintaining Availability in Modern Applications

Chapter 1. Understanding, Measuring, and Improving Your Availability

Chapter 2. Two Mistakes High—Having Room to Recover from Mistakes

Part II. Tenet 2. Modern Application Architecture: Using Services

Chapter 3. Using Services

Chapter 4. Services and Data

Chapter 5. Dealing with Service Failures

Part III. Tenet 3. Organization: Scaling Your Organization for Modern Applications

Chapter 6. Service Ownership—STOSA

Chapter 7. Service Tiers

Chapter 8. Service-Level Agreements

Part IV. Tenet 4. Risk: Risk Management for Modern Applications

Chapter 9. Using Risk Management When Architecting for Scale

Chapter 10. Game Days

Chapter 11. Building Systems with Reduced Risk

Part V. Tenet 5. Cloud: Utilizing the Cloud

Chapter 12. Getting Started Architecting for Scale with the Cloud

Chapter 13. Five Industry Trends Changed by the Cloud

Chapter 14. Types of SaaS and Tenancy

Chapter 15. Distributing Your Application in the AWS Cloud

Chapter 16. Managed Infrastructure

Chapter 17. Cloud Resource Allocation

Chapter 18. Serverless and Functions as a Service

Chapter 19. Edge Computing

Chapter 20. Geographic Impact on Using the Cloud

Part VI. Conclusion

Chapter 21. Putting It All Together

About the Author

Lee Atchison is the Senior Director, Cloud Architecture at New Relic. For the last seven years he has helped design and build a solid service-based product architecture that scaled from startup to high traffic public enterprise.

Lee has 32 years of industry experience including seven years as a Senior Manager at Amazon.com. At Amazon, he led the creation of the company’s first software download store, created AWS Elastic Beanstalk, and managed the migration of Amazon’s retail platform to a new service-based architecture.

Lee has consulted with leading organizations on how to modernize their application architectures and transform their organizations at scale; including optimize for cloud platforms, utilize service based architectures, implement DevOps practices, and design for high availability. This experience lead him to write his book “Architecting for Scale”, published in 2016 by O’Reilly Media.

Lee is an industry expert and is widely quoted in publications such as Diginomica, IT Brief, Programmable Web, CIO Review, and DZone. He has been a featured speaker at events across the globe from London to Sydney, Tokyo to Paris, and all over North America.