ABEND dump #7
Tags: prometheus, drama, haskell, promcon
Published: 2023-12-05 09:20:05

Hello again. It’s been a while 😅

The ABEND dump is the issue where I share the most interesting content I’ve been reading, listening to, and watching lately.

Want to check the previous issue? Read it here: [ABEND dump #6](https://bitmaybewise.substack.com/p/abend-dump-6)

One of the reasons it took me so long to write a new ABEND dump post was that I was revisiting a language that I enjoy a lot, Haskell. The language itself has its advantages and disadvantages, like any other, but not many people are exposed to it or have a bad impression because of random comments and jokes and don’t even try it, so I may write about Haskell for beginners—I’m not a Haskell pro myself and writing could solidify some concepts in my mind. 

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## [Effective Haskell](https://pragprog.com/titles/rshaskell/effective-haskell/)

![Effective Haskell book](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/7bha3sj7jl9d7n8vum7z.jpg)

The Pragmatic Bookshelf released this new book, Effective Haskell. It has a bunch of exercises to dabble with the language. Though [The Learn You A Haskell](http://learnyouahaskell.com/) and [Real World Haskell](https://book.realworldhaskell.org/) are closer to my heart, they are a bit old already, but still valid as a reference. The Effective Haskell from [Rebecca Skinner](https://rebeccaskinner.net/) has up-to-date examples and some nice extras, such as the chapters **Building Efficient Programs** and **Programming with Types**.

The author, Rebecca Skinner, is very approachable on [Twitter](https://twitter.com/cercerilla) and [GitHub](https://github.com/rebeccaskinner/) if you need to discuss anything. 

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## The OpenAPI drama

Gergely from The Pragmatic Engineer wrote an article covering all the OpenAI drama.

{% embed https://newsletter.pragmaticengineer.com/p/what-is-openai?utm_source=substack&utm_campaign=post_embed&utm_medium=web %}

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## [Fast Tokenizers with StringScanner](https://tenderlovemaking.com/2023/09/02/fast-tokenizers-with-stringscanner.html#)

[Tenderlove](https://twitter.com/tenderlove) has such great didactic! I usually learn a ton by reading his posts. In this article, he goes through writing a basic lexer and improving its performance with simple but powerful techniques.

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## [Five nines: chasing the dream?](https://www.continuitycentral.com/feature0267.htm)

> Is 99.999 percent availability ever a practical or financially viable possibility? Andrew Hiles explores the question.

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## [PromCon 2023](https://youtube.com/playlist?list=PLoz-W_CUquUnRmmz_BGgNfPNSKrazkzCR&si=V8WekpBCus-4EAnf)

This year the PromCon happened in Berlin and I could not miss it. Now that the videos are available on YouTube I’m adding below the ones that caught my attention.

**Zero-code application metrics with eBPF and Prometheus**

Having the possibility to instrument an application without even touching the application code is mind-blowing. Now even decades-old applications can be instrumented:

{% embed https://youtu.be/AIDZ_owcd0o %}

**Finding useless and resource-hungry Prometheus metrics**

{% embed https://youtu.be/NRXAB_Ug8zo %}

**Taming the Tsunami: Low Latency Ingestion of Push-Based Metrics in Prometheus**

{% embed https://youtu.be/W81x1j765hc %}

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See you on the next one ✌️

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