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Solar as a Complement to Auxiliary Power Units (APUs) for Semi Trucks

Solar as a Complement to Auxiliary Power Units (APUs) for Semi Trucks

Oct 6, 2026 By OpsMatters In OpsMatters
An auxiliary power unit for semi trucks provides power for onboard equipment when the main engine is not running. Depending on the system, an APU can support air conditioning, heating, lighting, refrigeration, communication equipment, and other electrical loads during rest periods or while the truck is parked. This allows auxiliary equipment to operate without running the truck's primary engine for every electrical or climate-control demand. That can be useful during overnight stops, loading and unloading, and other periods when the vehicle remains stationary.
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speedscale

Load Test PostgreSQL Instantly using Production Recordings

Oct 5, 2026 By Matt LeRay In Speedscale
The first PostgreSQL post ran on a laptop: a demo app, a Docker container, and the proxymock CLI. That is the fastest way to see the idea. It is also not where your database problems live. Your real query mix lives in the cluster, where a Java service with a connection pool, an ORM and a schema migration tool sends the statements nobody wrote by hand. This post deploys an open source banking app to Kubernetes and records the queries one of its services sends to PostgreSQL.
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VictoriaMetrics

The Year-2 Price Cliff: What Your Observability Stack Really Costs Over 3 Years

Oct 5, 2026 By MS Michelle Sebek In VictoriaMetrics
I’m not the one whose phone lights up at 3 a.m. when production breaks. But I’ve spent years working alongside the engineers who are, and I’ve noticed that observability migrations happen for two reasons. Either engineering needed one, or, far more often, a quote landed that looked too good to refuse. The engineers rarely regret the first kind. The second kind they tell me about in year two, usually with a renewal notice in hand.
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scout

FastAPI 0.142 Turns On OpenTelemetry by Default. Here's What It Records.

Oct 5, 2026 By Scout APM In Scout
FastAPI 0.142.0 ships with OpenTelemetry built in. Install fastapi, set one environment variable, and every request produces a trace, metrics, and error logs. No middleware, no instrumentation package, no code. That’s a big change for a framework most Python teams instrument by hand. It’s also easy to misread. The defaults record more than some teams expect in one place, and less than others assume in another. Here’s what you actually get.
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