Resolved Critical Performance Issues in E-commerce Platform
Unblocked a completely stalled background jobs queue and eliminated recurring H12 errors on Heroku that previously occurred multiple times per day.
Queue Optimization & Integrations
We optimized the DelayedJob queue by redesigning job handling and dispatching, fully eliminating daily performance bottlenecks and queue stalls. We also added multiple third-party integrations and fixed critical bugs in existing accounting and retail integrations.
Problem
The background jobs queue was completely stalled, holding up critical processing of third-party API calls. The application suffered from recurring H12 errors on Heroku multiple times per day, severely impacting system reliability and user experience.
Solution
We performed a comprehensive analysis of the DelayedJob queue architecture and identified critical bottlenecks in job handling and dispatching. By redesigning the queue management system, we eliminated the daily performance issues and queue stalls that had plagued the platform. We implemented proper monitoring and error handling to prevent future incidents.
Additionally, we expanded the platform's capabilities by integrating multiple third-party services including Etsy, TikTok, Mailchimp, Awin, and Smiffys. We also fixed critical bugs in existing integrations with accounting systems (Xero, Kashflow, Clearbooks, QuickBooks) and retail platforms (Lightspeed/Vend), ensuring seamless data flow across all connected services.
Results
The optimization work resulted in complete elimination of queue stalls and recurring H12 errors. The platform now processes background jobs reliably, and the addition of new integrations expanded the platform's e-commerce capabilities significantly. System uptime and reliability improved dramatically, providing a seamless experience for merchants and end users.
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