The DevOps Handbook: How to Create World-Class Agility, Reliability, and Security in Technology Organizations by Gene Kim & Patrick Debois & Jez Humble

Author:Gene Kim & Patrick Debois & Jez Humble [Kim, Gene]
Language: eng
Format: azw3, mobi
ISBN: 9781942788003
Publisher: IT Revolution Press
Published: 2016-10-05T18:30:00+00:00

FIND AND FILL ANY TELEMETRY GAPS

We have now created the infrastructure necessary to quickly create production telemetry throughout our entire application stack and radiate it throughout our organization.

In this step, we will identify any gaps in our telemetry that impede our ability to quickly detect and resolve incidents—this is especially relevant if Dev and Ops currently have little (or no) telemetry. We will use this data later to better anticipate problems, as well as to enable everyone to gather the information they need to make better decisions to achieve organizational goals.

Achieving this requires that we create enough telemetry at all levels of the application stack for all our environments, as well as for the deployment pipelines that support them. We need metrics from the following levels:

Business level: Examples include the number of sales transactions, revenue of sales transactions, user signups, churn rate, A/B testing results, etc.

Application level: Examples include transaction times, user response times, application faults, etc.

Infrastructure level (e.g., database, operating system, networking, storage): Examples include web server traffic, CPU load, disk usage, etc.

Client software level (e.g., JavaScript on the client browser, mobile application): Examples include application errors and crashes, user measured transaction times, etc.

Deployment pipeline level: Examples include build pipeline status (e.g., red or green for our various automated test suites), change deployment lead times, deployment frequencies, test environment promotions, and environment status.

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