Java Aug 18, 2026 5 min read
Production Java Concurrency Troubleshooting
Diagnose Java thread starvation, unbounded queues, lock contention, virtual-thread pinning, downstream overload, and failed cancellation with evidence.
Tag
Operations
13 articles with this tag. Follow these related notes when you want a narrower study path.
Backend Aug 5, 2026 10 min read
Production Spring Boot Incident Troubleshooting
Troubleshoot Spring Boot incidents from evidence through reversible mitigation, rollback, and recovery verification across correctness, users, and resources.
Backend Aug 5, 2026 11 min read
Spring Boot Actuator, Health, and Metrics Explained
Operate Spring Boot with minimal Actuator exposure, safe health groups, liveness and readiness boundaries, low-cardinality metrics, and graceful shutdown.
System Design Aug 4, 2026 10 min read
MVCC, VACUUM, and Table Bloat Explained
Learn how PostgreSQL MVCC, snapshots, dead tuples, autovacuum, visibility maps, freezing, HOT updates, and table or index bloat affect backend performance.
System Design Aug 4, 2026 10 min read
Production Slow Query Troubleshooting for Backend Systems
Use a production runbook to connect user impact, query fingerprints, waits, plans, estimates, buffers, locks, MVCC, pools, mitigations, and verified recovery.
System Design Aug 4, 2026 11 min read
Zero-Downtime Database Schema Migrations Explained
Learn expand-contract database migrations, compatible deploy ordering, bounded backfills, concurrent indexes, constraint validation, locking, and safe production rollout.
System Design Aug 2, 2026 10 min read
Liveness, Readiness, and Startup Health Checks Explained
Design Kubernetes startup, liveness, and readiness probes that route safely, recover local deadlocks, and avoid overload-driven restart storms.
System Design Aug 2, 2026 12 min read
Observability for Backend Systems Explained
Learn how logs, metrics, traces, and events work together to diagnose backend failures, protect telemetry quality, and verify recovery.
System Design Aug 2, 2026 11 min read
OpenTelemetry Collector Pipeline Explained
Build a resilient vendor-neutral telemetry pipeline with OTLP receivers, memory limits, batching, redaction, retries, queues, and self-monitoring.
System Design Aug 2, 2026 11 min read
Production Incident Troubleshooting with Logs, Metrics, and Traces
Follow an evidence-driven incident runbook from SLO alert and triage through metrics, traces, logs, mitigation, recovery verification, and postmortem.
System Design Aug 2, 2026 10 min read
Production Overload Troubleshooting for Backend Systems
Run an evidence-driven backend overload response from page and user impact through mitigation, controlled recovery, and durable verification.
System Design Aug 2, 2026 11 min read
SLI, SLO, Error Budgets, and Burn-Rate Alerts Explained
Turn user journeys into measurable SLIs, realistic SLOs, error budgets, and multi-window burn-rate alerts that page on sustained impact.
System Design Jul 1, 2026 7 min read
Database Migration Rollback Explained
Learn database migration rollback strategies, including backward-compatible changes, expand-contract migrations, backups, deploy order, and recovery plans.