Handling a Major Black Friday Event on
PrestaShop
Context
A Black Friday campaign triggered an intense traffic surge, pushing the client’s PrestaShop infrastructure to its limits – peaking at 900 requests per second.
The client operates a highly customized PrestaShop setup with numerous third-party modules, a personalized theme, customer-specific pricing tiers, and custom marketing bundles.
Architecture Used by ClusterCS
- 1 Load Balancer + Storage node, 9 PHP worker servers, and 5 Galera database nodes
Highlights
- Peak Load: 900 requests/sec
- Stable performance with minimal disruption
- Only 15 error 503s from a total of 450,000 requests
Platform Performance
- Average sustained load during spike: ~400 requests/sec
- Order volume: ~100 orders per minute at peak
Over 10x more traffic
Overview
Client Background
DentStore.ro is one of Romania’s fastest-growing e-commerce platforms for dental professionals. From high-end imaging systems to everyday consumables, they offer a vast catalog of products tailored to dentists, clinics, and labs. Their clients rely on speed, uptime, and a seamless experience – because in healthcare, time and trust are everything. For a company operating in such a precision-driven industry, any website glitch could mean a lost client – or worse, a disrupted patient treatment.
Challenges
As DentStore.ro scaled, so did the complexity of managing their backend systems. While their business grew rapidly, their infrastructure struggled to keep up – especially during high-demand events like Black Friday, where they experienced traffic spikes of over 10x. The team needed a reliable, scalable solution that wouldn’t require a full-time DevOps department to maintain. They were looking for something simple, powerful, and stable – something that could deliver enterprise-level performance without enterprise-level chaos.
Solution
ClusterCS delivered exactly that. The platform helped DentStore.ro set up a high-availability infrastructure with server clusters, automated monitoring, and advanced load balancing using HAProxy. With its intuitive control panel and no-code configuration tools, ClusterCS allowed the team to manage complex server operations without deep technical expertise. Its auto-healing capabilities ensured that if anything went wrong, the system would catch it early – and fix it fast.
Even more importantly, ClusterCS didn’t just hand over a toolkit and walk away. Their team worked closely with DentStore.ro to audit the existing setup, configure the clusters, deploy SSL and security settings, and implement a future-proof infrastructure. Every step was supported by expert guidance and lightning-fast responses from the ClusterCS support team.
Implementation
The implementation was smooth and collaborative. ClusterCS began by assessing DentStore’s infrastructure needs, then built a tailored solution using their high-availability templates and load-balancing strategies. Cronjobs, SSL management, backups, and failover configurations were put in place to ensure maximum resilience. The transition required minimal downtime, and the intuitive dashboard meant DentStore’s tech team could manage everything internally moving forward – with no need for complex command-line operations.
Results
The results were immediate and powerful. DentStore.ro experienced 99.99% uptime – even
during Black Friday traffic surges. Their infrastructure didn’t just survive the spike – it thrived. With ten times the normal traffic, their servers remained responsive, their checkout process stayed fast, and their customers remained happy. Internally, the team was able to shift their focus from managing server issues to growing the business. And with ClusterCS’s expert support just a message away, peace of mind came built-in.
Client Testimonial
“ClusterCS has been an absolute game-changer for our business. Their ability to reliably set up clusters of servers allowed us to focus on the business without the usual worries about infrastructure – especially during Black Friday, when we get over ten times as much traffic.
Their support? Outstanding.”
Alexandru Frățilă, CTO, DentStore.ro
Conclusion
Visit ClusterCS.com to learn more or request a custom setup