Shopwired (Platform 21 Limited) / PRODUCTION APP RESCUE + PERFORMANCE CONSULTING
Unblock the queue. Get the business moving again
We unblocked a completely stalled background jobs queue and eliminated daily H12 errors.
ClientShopwired (Platform 21 Limited)
Work deliveredBackground Jobs & Integrations
Business result100k+ → 0 · Stuck jobs
THE EXISTING PRODUCT
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.
App rescue starts with the production problem that is stopping the business. Repairing job dispatch, fixing integrations, and adding monitoring restored reliable processing in the existing platform.
THE BUSINESS CHALLENGE
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.
What needed to change
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.
THE WORK WE DELIVERED
Improve the product. Keep the business moving
- 01
Repair queue handling and dispatch
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.
- 02
Expand and stabilize integrations
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.
VALUE FOR THE BUSINESS
Queue Optimization: the results
We reduced the backlog from hundreds of thousands of stuck jobs to zero, cut job processing time from hours to milliseconds, and eliminated 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.
WE TAKE OWNERSHIP OF EXISTING RUBY ON RAILS APPLICATIONS
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