Guance Learn GUIDES

Observability guides

Practical, source-backed guides for instrumenting, operating, and improving production systems.

What Is Kubernetes? How the Control Loop Works cover
Technical guide

What Is Kubernetes? How the Control Loop Works

Understand Kubernetes through desired state, the control plane, nodes, Pods, workloads, and Services—what it automates, what remains yours, and how to inspect failure.

Datadog Pricing in Singapore (2026): AP1 Rates and Cost Examples cover
Pricing guide

Datadog Pricing in Singapore (2026): AP1 Rates and Cost Examples

Understand Datadog AP1 pricing for Singapore with public rates, a transparent 30-day log model, worked cost examples, and the assumptions that change the estimate.

APM Monitoring: The Complete 2026 Guide cover
Technical guide

APM Monitoring: The Complete 2026 Guide

APM monitoring explained — distributed tracing mechanics, RED/USE metrics, sampling strategies, OpenTelemetry vs vendor agents, and how to choose an APM tool.

AWS RDS Monitoring: The Complete 2026 Guide cover
Technical guide

AWS RDS Monitoring: The Complete 2026 Guide

Monitor AWS RDS properly — CloudWatch vs Enhanced Monitoring vs Performance Insights, the metrics and alarms that matter, slow query setup, and cost traps.

Docker Monitoring: The Complete 2026 Guide cover
Technical guide

Docker Monitoring: The Complete 2026 Guide

Monitor Docker containers properly — docker stats limits, cAdvisor + Prometheus setup, the container metrics that matter, log collection, and restart-loop alerting.

Kafka Monitoring: The Complete 2026 Guide cover
Technical guide

Kafka Monitoring: The Complete 2026 Guide

Monitor Apache Kafka end to end — consumer lag (the one metric that matters), broker JMX metrics, under-replicated partitions, exporter setup, and alert rules.

Kubernetes Monitoring Architecture: 4 Production Designs (2026) cover
Technical guide

Kubernetes Monitoring Architecture: 4 Production Designs (2026)

Kubernetes monitoring architecture patterns compared — single-cluster Prometheus, agent-mode remote write, multi-cluster hub, and platform-based. Data flow, scaling, failure modes.

Kubernetes Monitoring: The Complete 2026 Guide cover
Technical guide

Kubernetes Monitoring: The Complete 2026 Guide

Monitor Kubernetes end to end — the 4 metric layers, kubectl/Prometheus/eBPF tool choices, the 10 alerts every cluster needs, and common failure patterns.

MySQL Monitoring: The Complete 2026 Guide cover
Technical guide

MySQL Monitoring: The Complete 2026 Guide

Monitor MySQL like an SRE — the 15 metrics that matter, slow query log setup, replication lag alerts, connection pool traps, and exporter configs.

Observability Fundamentals: The 2026 Guide cover
Technical guide

Observability Fundamentals: The 2026 Guide

Observability fundamentals explained — metrics/logs/traces and why pillars mislead, SLO-based alerting, OpenTelemetry instrumentation, and a maturity roadmap.

PostgreSQL Monitoring: The Complete 2026 Guide cover
Technical guide

PostgreSQL Monitoring: The Complete 2026 Guide

Monitor PostgreSQL like an SRE — pg_stat_statements setup, the metrics that matter, vacuum/bloat watch, replication lag, connection pools, and alert rules.

Prometheus Monitoring: The Complete 2026 Guide cover
Technical guide

Prometheus Monitoring: The Complete 2026 Guide

Learn Prometheus monitoring end to end — metric types, PromQL patterns, alerting rules, remote write, and production pitfalls like cardinality explosions.

Datadog to OpenTelemetry: The 2026 Migration Playbook (Without Losing Visibility) cover
Technical guide

Datadog to OpenTelemetry: The 2026 Migration Playbook (Without Losing Visibility)

Move from Datadog-native instrumentation to OpenTelemetry — per-language SDK swaps, Collector dual-export to keep Datadog running, semantic conventions, and pitfalls.

How to Migrate from Datadog in 6 Weeks: Dual-Write, Field Mapping, Rollback (2026) cover
Technical guide

How to Migrate from Datadog in 6 Weeks: Dual-Write, Field Mapping, Rollback (2026)

A field-tested Datadog migration plan — inventory, dual-write cutover, dashboard/alert field mapping, canary verification, and rollback. Week-by-week checklist.