#observability
5 posts tagged “observability”.
Dozzle: When You Don't Need an Observability Stack
I spent two posts shaping telemetry with OTTL and profiling the fourth signal. My homelab runs a log viewer that starts in ten seconds. Both are correct - and knowing which problem you have is the entire skill.
Eighteen Days of Silence: How a Zero-Byte File Stopped My Blog
A stale .git/index.lock froze every write in my working copy for nine days. Nothing alerted, because the error was only ever visible to the process that tried to write. A postmortem, and the five assertions I am adding.
OpenTelemetry Profiling: The Fourth Signal, and Why It's Not Quite Ready
Profiling is OpenTelemetry's fourth signal - which function eats your CPU, at cluster scale, continuously. The data model, the eBPF two-collector setup, and an honest look at what OTTL still can't do with it.
Shaping Telemetry Before It Costs You: OTTL in the OpenTelemetry Collector
The OpenTelemetry Collector lets you enrich, redact, and cut cardinality without touching application code - using OTTL. Pipeline order, the cache trick, and the silent failure modes that make it feel broken.
The Shortest Stave: What Liebig's Law of the Minimum Teaches About Distributed Systems
A 19th-century plant-nutrition principle is the same idea as the bottleneck in a distributed system: one limiting factor caps the whole.