Viewing profile — miggy

Scaling matters, but why pay for abusive clients or bots? Adding a cache is easy; the hard part is invalidation, sync, and thundering herd. Use it if the product needs it, not as a…

We had a critical service that often got overwhelmed, not by one client app but by different apps over time. One week it was app A, the next week app B, each with its own buggy cod…

Excellent read. It highlights key aspects like health checks, server restarts, warm up, and load shedding, all of which make load balancing an already hard problem even harder.

Willy from HAProxy has a good write-up on this. In their benchmarks, least-connections usually beat P2C, but P2C was never the worst and is arguably a saner default when least-conn…

A strong tooling ecosystem needs money, which usually means corporate sponsorship.

Author here. Two quick thoughts: 1. As I covered in an earlier part of this series, service discovery is not always easy at scale. High churn, partial failures, and the cost of hea…

Author here. Absolutely, HAProxy’s sticktables is a powerful way to implement advanced routing logic, and they’ve been around for years. This series focuses on explaining the broad…

Author here. Thanks for sharing these thoughts. You’re right that DSR, ASN-based routing, SRV records, and other lower-layer approaches are important in certain setups. This post i…

It seems HAProxy also added ACME/DNS-01 challenge support in haproxy-3.3-dev6 very recently. https://www.mail-archive.com/haproxy@formilux.org/msg46035.h...

Thanks for sharing this! I’m the author of the blog post. Happy to answer any questions about the scenarios in the article or dive deeper into specifics like slow start tuning, con…

HTTP has never been truly simple, but HTTP/1.1 is probably the simplest it gets. HTTP/2 and HTTP/3 are significantly more complex.

One of the key aspects of feature flag systems is enabling A/B analysis, measuring the impact of features on metrics like click-through rate, session duration, and revenue. This do…

A useful way to find ideas is by observing asymmetries. When something appears easy for some people but difficult for others, or vice versa, it often reveals underlying complexity,…

In my experience, unit tests and logging code generated by LLMs tend to be overly verbose, miss meaningful assertions, and often produce boilerplate that looks correct but doesn’t …

At my company, we went from using detailed RFCs to one-pagers, and eventually to writing no formal docs at all. Over time, RFCs turned into artifacts optimized for promotions rathe…