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Notes on DevOps, Kubernetes, self-hosted infrastructure and consulting.
5 posts tagged backend · clear filter
October 1, 2026
The Transactional Outbox: Writing to a Database and a Queue Without Losing Events
Why commit-then-publish loses events, how to build an outbox table, whether to relay by polling or CDC, and how to avoid the sequence gap, duplicate delivery an...
mimari kuyruk backend
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September 30, 2026
API Rate Limiting: Token Buckets, Choosing the Right Key and Distributed Counter Pitfalls
Why fixed windows let twice the limit through, why the IP address is a poor key, how INCR plus EXPIRE in Redis can block a client forever, and why you should an...
api-tasarimi backend guvenilirlik
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September 28, 2026
PostgreSQL Connection Pooling: PgBouncer's Three Modes, the Prepared Statement Trap and Multi-Tenant Sizing
How to choose between session, transaction and statement modes, what breaks in transaction mode, why the prepared statement error only appears under load, and h...
postgresql performans multi-tenant
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September 25, 2026
Zero-Downtime Schema Migrations: Expand and Contract, Locks and PostgreSQL Pitfalls
Rolling deploys are not enough; a schema change breaks the moment old and new versions run side by side. How to migrate PostgreSQL without downtime using expand...
postgresql backend saas
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September 2, 2026
Queues and Async Job Processing: Where They Help, Where They Hurt
Pushing every slow operation into a queue does not remove complexity, it relocates it. A practical look at when async processing actually pays off, what deliver...
backend mimari kuyruk
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