performance

Python

Python Async Worker Backpressure: Prevent Queue Growth and Memory Spikes

Control Python async worker load with bounded queues, concurrency limits, cancellation handling, timeouts and observable retry policies.

ProdCraftNov 12, 20265 min read

PHP

PHP OPcache Tuning: Improve Application Performance Without Stale Code

Tune PHP OPcache memory, timestamp validation and deployment resets to improve performance without serving stale application code.

ProdCraftNov 12, 20266 min read

PostgreSQL

PostgreSQL VACUUM and Table Bloat: A Practical Maintenance Runbook

Understand PostgreSQL VACUUM, autovacuum thresholds, dead tuples, table bloat and safe maintenance practices for busy databases.

ProdCraftNov 12, 20266 min read

Networking

Nginx Upstream Keepalive: Reduce Connection Overhead for Backend APIs

Configure Nginx upstream keepalive for backend APIs, understand HTTP connection reuse, size idle pools and troubleshoot proxy behavior.

ProdCraftNov 12, 20266 min read