Vengala Vinay

Having 12+ Years of Experience in Software Development

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Vinay Vengala

Setting up Docker-based Discourse instances behind an isolated Nginx reverse proxy server on openSUSE Leap 15.5

Prerequisites and Initial Setup This guide assumes you have two distinct openSUSE Leap 15.5 servers: one dedicated to running Dockerized Discourse and its dependencies (let’s call it discourse-host), and another acting as an isolated Nginx reverse proxy (proxy-host). Both servers should have static IP addresses and be accessible within your internal network. Ensure that discourse-host […]

Troubleshooting Discourse PostgreSQL database migration locks on RHEL 9 during major version upgrades

Understanding PostgreSQL Lock Contention During Discourse Upgrades Major version upgrades of PostgreSQL, especially when performed on a production Discourse instance, can introduce complex challenges. One of the most common and disruptive issues is database lock contention, which can halt the upgrade process or, worse, lead to data corruption. This often manifests during the `pg_upgrade` utility […]

Tuning Nginx Reverse Proxy caching, buffering, and timeouts on Rocky Linux 9 for Discourse platform proxying

Nginx Reverse Proxy Tuning for Discourse on Rocky Linux 9 This document details advanced Nginx configuration strategies for optimizing caching, buffering, and timeouts when acting as a reverse proxy for a Discourse instance on Rocky Linux 9. These settings are critical for ensuring high availability, responsiveness, and efficient resource utilization under heavy load. Understanding Nginx […]

Installing and Tuning Uvicorn + Gunicorn process trees on Ubuntu 24.04 LTS for high-traffic FastAPI Backends

System Preparation and Initial Setup This guide focuses on deploying and optimizing FastAPI applications using Uvicorn and Gunicorn on Ubuntu 24.04 LTS. We’ll cover the installation, configuration, and advanced tuning required for high-traffic scenarios. Ensure your system is up-to-date before proceeding. Begin by updating your package lists and upgrading existing packages: sudo apt update && […]

Setting up an ultra-lightweight Nginx + PHP-FPM Alpine container server on openSUSE for CodeIgniter 4 apps

Prerequisites and Base System Setup This guide assumes a fresh installation of openSUSE Leap or Tumbleweed. We’ll be leveraging Docker for containerization, which is the most efficient way to manage isolated, lightweight environments. Ensure Docker is installed and running on your host system. On openSUSE, installation is straightforward: Install Docker: sudo zypper install docker docker-compose […]

Tuning CodeIgniter 4 Redis Session Handler configurations on Rocky Linux 9 for High-Concurrency checkouts

Optimizing CodeIgniter 4 Redis Session Handling for High-Concurrency Checkouts on Rocky Linux 9 Enterprise-grade e-commerce platforms demand robust and performant session management, especially during high-traffic periods like flash sales or seasonal promotions. CodeIgniter 4’s flexibility allows for custom session handlers, and leveraging Redis for session storage offers significant advantages in terms of speed and scalability. […]

Upgrading legacy CodeIgniter 3 application directory structures to CodeIgniter 4 PSR-4 autoloading on Debian 12

Prerequisites and Environment Setup This guide assumes a Debian 12 (Bookworm) server with a functional LAMP or LEMP stack. Specifically, you’ll need PHP 8.1 or later, Composer installed globally, and root or sudo privileges. We’ll be working within a hypothetical application directory, /var/www/legacy_app. Ensure your existing CodeIgniter 3 application is functional before proceeding with the […]

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