Observability
Installing OpenSearch and OpenSearch Dashboards
Install OpenSearch with Docker Compose or the archive: initial password, vm.max_map_count, demo certificates and JVM memory, with the errors encountered o…
Guides & insights
A library for curious minds
Observability
OpenTelemetry metrics: instruments, temporality, histograms and exemplars
Master the metric signal: MeterProvider, synchronous and asynchronous instruments (Counter, UpDownCounter, Histogram, Gauge, observables), aggregations, c…
DevOps
Thresholds, metrics and results of a k6 test
Read the summary of a k6 test, understand the built-in metrics (http_req_duration, http_req_failed, iterations), define thresholds aligned with SLOs and c…
Observability
Metric types in Prometheus
Discover in detail the four metric types supported by Prometheus (Counter, Gauge, Histogram, Summary) and their specific use cases.
Learning never stops