Series

Operational architecture patterns for enterprise ERP infrastructure — from the field.

Integration, disaster recovery, data replication, message-queue isolation and safe release patterns for enterprise ERP infrastructure. Each post tackles one operational architecture decision.

• Optimizing Supply Chain Data Flow: 3 Steps for ERP
• Product Tree Denormalization and the Anatomy of Technical Debt
• Safe Version Migration in ERP Infrastructures via Transaction…

Operations, security and runbook discipline for production Kubernetes.

Operations and security for production Kubernetes: ETCD recovery, RBAC, network policy, secret rotation, hardening and real runbooks.

• Kubernetes Network Policies: Invisible Walls Between Pods
• Defense Strategies Against Kubernetes DNS Cache Poisoning
• Kubernetes API Server Audit Log: Policy and SIEM Pipeline

Database internals and production decisions — from fundamentals to operations.

Database internals and production decisions: WAL, indexing, partitioning, isolation levels, MVCC, connection pooling and replication.

• PostgreSQL WAL Bloat Management: Reclaiming Disk Space in 4 Steps
• ACID Properties: Are They Absolutely Essential for Every Project?
• PostgreSQL MVCC: Common Mistakes in Application Development

Real incidents from the field — no hype, post-mortem discipline.

Real incident stories, post-mortems and operational lessons from production. Format: Problem → How I noticed → Debug flow → Root cause → Fix → How never to live it again.

• Swap Fire: My Kubernetes Experiment on a 7.6 GB VPS
• 3rd OOM on the VPS: Parallel Builds and a flock Mutex Story
• The Psychology of Running Production on a Single VPS