This course teaches the theory of Service Level Objectives (SLOs), a principled way of describing and measuring the desired reliability of a service. Upon completion, learners should be able to apply these principles to develop the first SLOs for services they are familiar with in their own organizations. Learners will also learn how to use Service Level Indicators (SLIs) to quantify reliability and Error Budgets to drive business decisions around engineering for greater reliability. The learner will understand the components of a meaningful SLI and walk through the process of developing SLIs and SLOs for an example service.
Site Reliability Engineering: Measuring and Managing Reliability
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Site Reliability Engineering: Measuring and Managing Reliability
Google Cloud
Об этом курсе
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Learner Career Outcomes
Чему вы научитесь
How to make systems reliable
Understanding SLIs, SLOs and SLAs
Quantifying risks to and consequences of SLOs
Learner Career Outcomes
100% онлайн
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Продвинутый уровень
Прибл. 23 часа на выполнение
Предполагаемая нагрузка: 4 weeks of study, estimated 2 hours per week.
Английский
Субтитры: Английский
Программа курса: что вы изучите
Неделя
127 минуты на завершение
Introduction to SRE
This module is intended to bring you up to speed on the concepts underpinning SRE, CRE, and SLOs. If you're already familiar with these concepts, you may still find new information and perspectives in this module, but it is not necessary to complete it.
9 видео ((всего 15 мин.)), 1 тест
9 видео
Course structure2мин
Introduction15
Intro10
CRE's Three Reliability Principles3мин
Reliability in the Cloud3мин
How SLOs help your business make decisions1мин
How SLOs help you build features faster1мин
How SLOs help you balance operational and project work1мин
Making SLOs work for your organization59
1 практическое упражнение
DevOps/SRE1мин
1 ч. на завершение
Targeting Reliability
In this module we’re going to talk about how you measure the desired reliability of a service. We will address what to consider when setting SLOs for your application within your organization. We'll look at the three principles we use to measure the desired reliability of a service: figuring out what you want to promise and to whom, figuring out the metrics you care about that make your service reliability “good", and finally, deciding how much reliability is good enough.
7 видео ((всего 14 мин.)), 4 тестов
7 видео
SLOs vs SLAs2мин
The happiness test2мин
How do we measure reliability?3мин
Edge cases2мин
100% is the wrong target1мин
Iterating1мин
4 практического упражнения
A working service5мин
SLOs and SLAs7мин
Reliability and iterating1мин
Targeting Reliability Assessment7мин
1 ч. на завершение
Operating for Reliability
In this module, we’ll start by introducing a mechanism for quantifying unreliability using something called an error budget. We'll show how error budgets help you decide when to focus on making a service more reliable. And then we'll learn about some of the engineering and operational improvements that can help you do that.
7 видео ((всего 19 мин.)), 3 тестов
7 видео
Error budgets3мин
Everything is a trade-off3мин
Error budgets: advanced concepts2мин
Axes of improvement4мин
Operational approach to increasing reliability2мин
Module summary50
3 практического упражнения
Error budgets5мин
Increasing reliability3мин
Operating for Reliability Assessment5мин
Неделя
21 ч. на завершение
Choosing a Good SLI
In this module we will start off by taking a look at some characteristics of monitoring metrics that can make them useful as SLIs and contrast these against other metrics that are less useful. Because the choice of where to measure an SLI is a key variable, we'll cover the five main ways you can measure an SLI and compare their pros and cons.
14 видео ((всего 41 мин.)), 3 тестов
14 видео
Introduction1мин
User happiness in metric form1мин
The properties of good SLI metrics4мин
Ways of measuring SLIs4мин
The SLI menu2мин
The SLI equation1мин
Request / Response SLIs5мин
Data processing SLIs6мин
"But my system is really complex!"2мин
Managing complexity with aggregation2мин
Managing complexity with bucketing3мин
Achieveable SLOs1мин
Aspirational SLOs1мин
Continuous improvement1мин
3 практического упражнения
Measuring happiness1мин
Commonly used SLIs2мин
Correctness and Coverage2мин
Неделя
35 ч. на завершение
Developing SLOs and SLIs
In this module, we'll start off with an overview of our four step process for developing SLOs and SLIs for a user journey. We'll introduce the fictional company that created our example mobile game, the infrastructure that we'll be working with, and the simple user journey we'll be applying the four step process to.
7 видео ((всего 18 мин.)), 4 тестов
7 видео
The 4 step process1мин
Our example game1мин
Loading the profile page1мин
Refining SLI specifications4мин
Looking for observability gaps2мин
Failure modes4мин
2 практического упражнения
Postmortem!15мин
Setting Achievable SLO targets15мин
Неделя
44 ч. на завершение
Quantifying Risks to SLOs
In this module we'll be taking a critical look at the availability risks for our example service. We want to answer the question: "are our SLO targets and error budgets realistic?"
4 видео ((всего 20 мин.)), 2 тестов
4 видео
Introduction1мин
Is your error budget realistic?3мин
Modeling risks in our spreadsheet5мин
Analyzing risk9мин
1 ч. на завершение
Consequences of SLO Misses
In this module, we'll cover best practices for documenting your SLOs, the rationale behind a formal error budget policy and how best to create one and finally, we'll look at an example error budget policy in order to understand the trade-offs and incentives that play out during negotiations when trying to write an error budget policy.
9 видео ((всего 21 мин.)), 3 тестов
9 видео
No surprises2мин
A dashboard example1мин
Why an error budget policy?2мин
Fundamentals of an error budget policy3мин
How to draft an error budget policy3мин
Example policy thresholds3мин
A hypothetical policy scenario3мин
Course conclusion and video wrap up47
3 практического упражнения
Error budget policies1мин
Error budget policy -- considerations2мин
Consequences of SLO Misses1мин
4.5
Рецензии: 71Лучшие отзывы о курсе Site Reliability Engineering: Measuring and Managing Reliability
Very useful course to introduce SRE concepts. In combination with the SRE book, it's the way to go to learn and start applying SRE in your project/company.
SRE: Measuring and Managing Reliability is a great opportunity to learn and practice SLI, SLO, error budget policy and focus in the user happiness.
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