SRE

TSTP (get ready to be shutdown). TERM (heroku default is 25 seconds, elsewhere defined by config / timeout switch).

We are building a distributed file system for your SQLite databases. Kinda weird, huh?

🎉 Announcing fgtrace, a new profiler/tracer for #golang.It captures wallclock timeline views for each goroutine and it's really simple to use:defer fgtrace.Config{}.Start().Stop()Check it out & let me know what you think https://t.co/Ttdm5hl0Vi pic.twitter.com/4iP9SNVypD— Felix Geisendörfer (@felixge) September 19, 2022

Profiler's output file formats.

Addr：https://ebpf.xyz/post/an_introduction_and_practical_tips March 23, 2022 This article introduces developers to eBPF and explains how it can be used to add security, networking, and other capabilities in the Linux kernel space. In Linux architecture, memory is separated into kernel space and user space. The kernel space is used to run the core kernel code and the device drivers. Processes running in kernel space have unrestricted access to all hardware, including CPU, memory, and disks.

We often look at a Service and wonder where to start monitoring the thing let alone what the SLOs should be.  Critical User Journeys help…

Introduction to resilience engineering concepts for software engineers - GitHub - res-eng/resilience-for-software: Introduction to resilience engineering concepts for software engineers

From Erik Hollnagel. ” A system is resilient if it can adjust its functioning prior to, during, or following events (changes, disturbances, and opportunities), and […]

My notes and takeaways from a long read on anomalies and system complexity called the STELLA Report from the SNAFUcatchers Workshop on Coping With Complexity, 2017. Via Matt. This paper is one of t…

Check out the latest from The Lead Developer at theleaddeveloper.com. On March 28, 1979, at exactly 4 o’clock in the morning, control rods slammed into the reactor core of Three Mile Island Unit #2, halting the nuclear reaction because of a fault in the reactor cooling system. At 4:02, the automated emergency cooling system activated as the reactor core temperature continued to rise. At 4:04, one of the plant operators made the befuddling decision to switch off the emergency cooling system, dooming the reactor to partial meltdown. Why? When something bad happens, it’s easy to just blame someone and move on. Taking the time to find the systemic causes, though, will not only help keep the problem from repeating, it will enable you to build the psychological safety necessary for your team to truly collaborate. Let’s let the story of Three Mile Island teach us how to make our teams stronger through systems thinking and just culture.

Imagine you are in a remote meeting using terms like SLI, SLO, or SLA, and your kid asks you what it means? How would you explain it to them? Or maybe you need to explain it to your boss or a colleague. In this article, I will try to put SLI, SLO, and SLA in a way even your kids would understand… maybe.

Self link: https://cre.page.link/art-of-slos-slides Participant Handbook: https://cre.page.link/art-of-slos-handbook Facilitator Handbook: https://cre.page.link/art-of-slos-howto SLO Worksheet: https://cre.page.link/art-of-slos-worksheet Errors in the content? https://cre.page.link/art-of-slos-bu...

Learn about Game Days, a DevOps method for software development and testing teams to build up their readiness to achieve better Incident Management.

Chaos engineering is an implementation of testing the robustness of your application and the readiness of your team in handling application failures.

John Arundel, principal consultant at Bitfield Consulting, shared his thoughts on how to ensure incidents are handled smoothly and quickly. He suggests assigning specific roles to each team member responding to the incident. Red team versus blue team exercises can also be leveraged to ensure the team is prepared to respond accurately and quickly.

An open source tool powered by markdown to document your Event Driven Architecture.

Increase your knowledge of site reliability engineering with these books

Curious about how our Site Reliability Engineers do their job? Jonathan Harden shares what his typical work routine looks like, and what benefits the role has.

Steampipe is an open source tool to instantly query your cloud services (e.g. AWS, Azure, GCP and more) with SQL. No DB required.

OpsLevel’s mission is to make it simpler for companies to ship and operate high-quality software through service ownership and developer portals.

The code is a liability, not an asset. The debt begins for a team the moment the first line of code is written. The code is written when…

Recently there has been substantial discussion around the downsides of service oriented architectures and microservice architectures in particular. While only a few years ago, many people readily adopted microservice architectures due to the numerous benefits they provide such as flexibility in the form of independent deployments, clear ownership, improvements in system stability, and better separation of concerns, in recent years people have begun to decry microservices for their tendency to greatly increase complexity, sometimes making even trivial features difficult to build.

small Linux VM, ready to run containers, for macOS on ARM - GitHub - apinske/virt: small Linux VM, ready to run containers, for macOS on ARM

The biggest mistake Kubernetes admins make with health probes is configuring the probes the same way for all apps.

What happens when your distributed service has challenges with stampeding herds of internal requests? How do you prevent cascading failures between internal services? How might you re-architect your workflows when naive horizontal or vertical scaling reaches their respective limits? These were the challenges facing Slack engineers during their day-to-day development workflows in 2020. Multiple internal …

Every so often, an employer asks me to help make a dashboard. Usually, this causes technologists to roll their eyes. They have a vision of a CEO grandly staring at a giant projection screen, watchi…