Blog

Root cause analysis, knowledge graphs, and what actually eats the time on an incident — from the team building Rootr.

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  The Tribal Knowledge Tax

  July 14, 2026 · Van Ryu

  When half the team depends on one person's memory to make sense of an incident, resolution time isn't measured in minutes anymore. It's measured in whether that person picks up their phone.

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  The Postmortem Nobody Reads

  July 8, 2026 · Van Ryu

  The document gets written. It gets filed. It never gets read again — not because nobody cares, but because nothing connects it to the next incident.

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  Why Root Cause Analysis Always Takes More Than Three Hours

  July 8, 2026 · Van Ryu

  Fixing a known problem usually takes minutes. The three hours go into finding out what's wrong in the first place — here's where they actually go.

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  From 4 Hours to 12 Minutes: Tracing a 128°C Boiler Spike Back to Its Cause

  July 8, 2026 · Van Ryu

  A demo scenario walking through how a boiler over-temperature incident goes from a 4-hour, three-person manual reconstruction to a 12-minute confirmed answer once the logs are connected.

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  What Is GraphRAG Root Cause Analysis?

  July 8, 2026 · Van Ryu

  GraphRAG root cause analysis combines graph traversal with retrieval-augmented generation to trace an incident back to its cause automatically. Here is how it differs from plain vector-search RAG.