2 docs tagged with "runbook"

PostgreSQL Write-Ahead Logging and replication mechanics: why a no-op UPDATE generates 380MB of WAL, replication lag causes, orphan replication slots exhausting disk, silent archive_command failures, and the 2 AM 95% disk emergency playbook.

Deep-dive into Kafka Connect rebalance storm internals — why they happen, the two rebalance protocols, incremental cooperative mechanics, task assignment algorithms, Spring Boot monitoring, and a production-grade rolling restart runbook.