Coroot

A database has to stay durable, available, and fast, and the failures that break those promises rarely page you until it's too late. Here's how comprehensive Postgres observability tells you your database is healthy now and will keep performing.

We partitioned the primary of a default CloudNativePG cluster and measured how long it kept accepting writes after a replacement was promoted, what that did to the data, and which settings shrink the window.

I tried to make a Postgres replica fall behind by cutting it off from its primary with Chaos Mesh. It stubbornly refused to lag. Here's the investigation, the logs, and the proof from CloudNativePG's source that a replica has a second, hidden WAL source.

Every Postgres runs autovacuum and almost nobody monitors it properly. Let's reproduce the common ways it fails and see how Coroot turns each one into a clear, actionable finding.

We ran one real incident through eleven LLMs. The reasoning turned out to be the easy part; the real challenge is the harness that feeds the model the right context.

Coroot's agent now runs on Windows. The story of building it on ETW instead of eBPF: what came easy, what was hard, and what we left for later.

How we added continuous Go heap profiling to coroot-node-agent without requiring any code changes, pprof endpoints, or annotations, by reading runtime.mbuckets directly from process memory.

We added async-profiler support to Coroot for Java CPU, memory, and lock contention profiling with no code changes-then broke things to prove it works.

Learn how Coroot makes encrypted Java traffic observable by combining a lightweight Java agent with eBPF uprobes-no code changes, no sidecars.

Learn how to capture plaintext from rustls using eBPF uprobes-no code changes-and make encrypted Rust traffic fully observable with Coroot.