LSLiviu Stirbinblog.blockingqueue.com·2d ago · 10 min readA short crash course on metrics: gauges, counters, and histogramsThe metric type you pick is a promise about how the number behaves over time. Pick the wrong one and everything you build on top of it breaks silently. No error, no warning, just a graph that stops ma00
CDCHIRANJEEVI DRONAMRAJUinchiranjeevidronamraju.hashnode.dev·Aug 21 · 2 min readOpenTelemetry Imagine a simple cloud-native application: User → Frontend → Order Service → Payment Service → Database Everything works fine… until a user says: “My order is taking too long.” Now the real question b00
AKAman Karkiinamankarki.hashnode.dev·Aug 15 · 7 min readI Ran a Coupling Analyzer on nlohmann/json and fmt. It Found a Class Doing 55 JobsI've been building RAAG, a platform that turns source code into a quantified dependency graph and uses it to scope AI-assisted refactoring. Last post covered the C++ extraction layer — parsing 579 fil00
CVChosen Vincentinchosenvincent.hashnode.dev·Aug 4 · 11 min readWhy Observability Costs Keep Rising and How to Reduce ThemYour infrastructure grows by 20%, but your observability bill jumps by 60%. That sounds odd, but it happens more often than many teams expect. A few new services, more traffic, extra containers, or a 00
BCBarron Casterinito.hashnode.dev·Jul 29 · 15 min readMTTR is the Wrong Metric for AI-Era Engineering TeamsKey takeaways MTTR assumes failures will happen and measures how fast you respond. As AI accelerates code output and bug rates rise 41% with it, optimizing recovery time means accepting that your cus00
Mmarcuscheninvoicelatency.hashnode.dev·Jul 26 · 5 min readOur voice agent scored 91 percent. The callers still hung up angry.Two weeks after we launched the support line, the dashboard was the color you want. Task-success rate: 91 percent. The agent booked the appointment, reset the password, quoted the balance. Green acros00
ASArief Shaikinariefshaik.hashnode.dev·Jul 16 · 4 min readBuilding Highly Available Long-Term Metrics Storage with ThanosPrometheus is the de-facto standard for monitoring in Kubernetes environments. It is incredibly powerful for scraping and querying real-time metrics. However, as our infrastructure grew, we hit a comm00
SGSergio González Téllezinevankhandev.hashnode.dev·Jul 12 · 6 min readBeyond SQL: How a Data Science Capstone Changed the Way I Think About Metrics, State, and Observability1. Introduction When I enrolled in the Learn SQL Basics for Data Science Specialization from the University of California, Davis, my goal was straightforward: learn SQL and strengthen my data analysis00
Mmayaanderssoninllmasajudge.hashnode.dev·Jul 8 · 7 min readOne average eval score was hiding two different failure modesA mean faithfulness of 0.75 sounds like a model that is usually right and occasionally slips. Mine was near-perfect on half the data and near-zero on the other half, and 0.75 described neither slice. 00
YKYash Karechainyash-karecha.hashnode.dev·Jul 5 · 21 min readI Built My Own ChatGPT Backend to Understand How AI Streaming Actually WorksEvery time I use Claude or ChatGPT I get stuck on the same question: how does the text just show up, word by word, like the model is thinking out loud in real time? Why does it feel instant when it's 00