https://blog.omatheusmesmo.dev/en/tags/observability/Recent content in Observability on Matheus Oliveirahttps://blog.omatheusmesmo.dev/images/duke.svghttps://blog.omatheusmesmo.dev/images/duke.svgHugo -- 0.146.0en-usSun, 09 Aug 2026 12:00:00 -0300https://blog.omatheusmesmo.dev/en/posts/observability-distributed-production/Sun, 09 Aug 2026 12:00:00 -0300https://blog.omatheusmesmo.dev/en/posts/observability-distributed-production/Context propagation across Java, Go, .NET, Node and the browser, over HTTP, gRPC and Kafka. Tail sampling in the collector, cardinality explosion, exemplars linking metric to trace, tests that assert on spans, and SLOs with an error budget.https://blog.omatheusmesmo.dev/en/posts/observability-quarkus-opentelemetry/Sat, 08 Aug 2026 12:00:00 -0300https://blog.omatheusmesmo.dev/en/posts/observability-quarkus-opentelemetry/A practical guide to observability with OpenTelemetry and Quarkus. The Grafana LGTM Dev Service, JDBC instrumentation with no annotations, MDC, JFR correlated by trace id, and the instrumentation mistakes that fail in silence.