Zachary Zehring

Math is important in all of software engineering, and the reliability engineering specialty is no exception. Things like calculating error budget burn rate, long and short windows and how they affect you can get complicated quickly. Understanding the equations (and I mean *really* understanding them, not just memorizing them) is the first big step to being able to reproducibly calculate your targets and adjust them when needed. #sre #sitereliabilityengineering

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There's no such thing as a free lunch. Open source Kafka is "free" to download, but not free. Confluent reduces TCO drastically. TCO Blog Series, Parts 1-4: https://lnkd.in/eNyAHrEX

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Adding ECS ServiceConnect was SUPER simple. If I can get a fraction of the Envoy at way less of the complexity, I think I'm going to be very happy. Well done Amazon Web Services (AWS) #aws #awscloud #containers #serverless #sometimesservers #believeinserverless

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Friendly reminder that if you Typescript, your types are a lie. No type checking at runtime. If you call an external system there is ZERO guarantee on type accuracy. You STILL need some form of contract checking at runtime. I use jo for all incoming and outgoing data.

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🏎️💨 Making of a Ridiculously Fast™ API client in R. Why my package is **~17x faster** than the community alternatives that call the **exact same API endpoints**. 👇🏽**design choices matter** ✨ https://lnkd.in/ggi_2XyQ

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😎 Good chat between two of this generation's #PostgreSQL #legends, Michael Christofides and Nikolay Samokhvalov. 🎯 #Minor #Upgrades: check out how you can #manage that on #PostgreSQL, possible #issues and all the #good #comments from this #video. https://lnkd.in/dnAQb3Q2 🔥 Don't forget to look at the video's #details for #interesting #blog #posts related to the same #subject! #databases #operations #minor #upgrade #postgresql

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I often run into Business types or even Developers who are kind of fuzzy on what DevOps is. The TLDR I give is "you know your application and features? DevOps is *everything else*: databases, pipelines, permissions, networks, domains, certificates, architecture..." Here's a quick and breezy high-level explanation by National Treasure Nick Janetakis -- https://lnkd.in/gdMFCCbh

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Curious to know what is the worst code base that you had to work on? I once joined a team and I was staring at a 800 line method. You will always work on code base written by others. Write clean code. Future maintainer will thank you. Remember you will also be a future maintainer of some other code base. Code responsibly. #testing #automation #softwareengineering

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Last week I posted a video about using Open WebUI as an Ollama frontend. But if you need a simpler yet extremely powerful solution that doesn't need Docker, check out Msty. https://lnkd.in/gAaxEpkv

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There are two types of mid-level software developers out there: First: Those teaching and sharing how to handle thousands or millions of transactions per second (100K tps). Second: Those avidly watching and reading about how to handle thousands or millions of transactions per second. Meanwhile, both are working on systems that barely handle 10 transactions per second on a good day. #ScalableSystem

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TL;dr - RIP Terraform. Time to say goodbye. I just ran into this obituary for Terraform and Hashicorp. The most probable future seems to be the maximization of sales motion and the minimization of engineering investment - just adding another product to the price list and unleashing the sales force at it. The worst possible outcome would be if IBM decided to make Terraform part of their still-born cloud offering. Or maybe we’ll have Terraform for mainframe? #terraform #hashicorp #ibm #upgrade

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OpenSearch Serverless halves the minimum OCU to 2, so the minimum monthly cost is now ~$345. It's a good step forward, but I want a search service with scale-to-zero and no minimum uptime cost. Sadly, Elasticsearch serverless is also based on an OCU-equivalent uptime unit. Algolia is perhaps the closest to usage-based pricing. Is there another serverless search service that I should look at? https://lnkd.in/gJYhqQWR

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Thr `jets exec` command runs bash commands in the deployed AWS Lambda env. It’s like a REPL for lambda. It’s useful for debugging https://lnkd.in/gQ4Gnfig #rubyonjets #rails #aws #serverless

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Being able to effectively read software and system logs is a huge skill. Quickly grep'ing, correlating log entries, filtering out noise, and navigating multiple log sources is something I can attribute countless debugging and troubleshooting success to. Even just having the mindfulness and willingness to dig into logs is already a step in the right direction. Wise words from Davanum Srinivas 👏 #softwaredevelopment #softwareengineering #sre #sitereliabilityengineering

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Gave an internal talk today on Blue/Green Deployments and how to make that happen with ECS and CodeDeploy. If this would be interesting to anyone, I'd love to give it again. I also have an intro to Rust and Serverless that would be fun as well. DMs are open. #aws #awscommunity #learning #serverless

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Yesterday I said something a bit naughty live on Eberhard Wolff's architecture stream. I said that sometimes you should do your architecture modernization in secret. Of course this is not the default. It's very risky and there are nuances. What I mean is, sometimes you don't need to over-share your implementation details. if you say "we will refactor the domain model while modernizing" - people might be worried that you're going to over-engineer. It's always preferable to be transparent, but it's also important to do what is right for the company. Sometimes that means being a little cheeky and not asking for permission to do the right thing. Note to all of my past and future employers and clients: I am always 100% transparent. I would never do anything that helps you to be successful without first giving you the chance to refuse 🫣🤭 #architectureModernization

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Steph Gooch recently released a great article about Spring Cleaning your AWS Costs. Her article was great, and emphasizes removing idle resources (S3 buckets, EBS snapshots), and creating a prioritized list. 👇 Rahul Subramaniam and myself discussed it on our stream last week: https://lnkd.in/g885fzVC Steph's article: https://lnkd.in/gJHCs2Mk At CloudFix, we have automated finder/fixers for most of the points that Steph brought up. - Enable S3 Intelligent Tiering - https://lnkd.in/g3pkkZvq - Get rid of unused AMIs and EBS volumes - https://lnkd.in/g6Swa-xU - RDS Multi-AZ Deployments that could be Single AZ - https://lnkd.in/gACUrhB3 - Move managed services to graviton - https://lnkd.in/gfbh7v7Z & https://lnkd.in/g3qeQ-5q If you need to do spring cleaning in your AWS account, consider CloudFix your Roomba - always looking for bits to clean up so you can spend your time doing something else (like migrating to serverless or deploying AI)! #aws #costoptimization

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