How Paystack Saved $540K and Maintained 100% Uptime with a Seamless AWS Upgrade

Overview

Paystack, the financial engine of Africa and a Stripe-acquired platform processing billions for 200,000+ businesses, faced a macroeconomic risk when Aurora MySQL 2 (MySQL 5.7) reached End-of-Life on AWS Aurora Infrastructure. Mydbops co-engineered a zero-incident migration across 11 production databases, modernizing Africa’s payment rails, reclaiming 50TB of redundant data, and eliminating major financial penalties. The flawless execution was publicly credited in the Paystack Engineering Blog.
Zero
Incident Validation
Flawless execution credited by Paystack’s team.
$450k
OpEx Reclaimed
Stopped expensive penalties from outdated software.
50 TB
Storage Reclaimed
Smart archival removed years of redundant data.
100%
Uptime
Maintained for Africa's largest payment volume.
MySQL
Consulting Services

About

Paystack powers billions in transactions annually across Africa for 200K+ businesses – startups to giants like MTN, UPS. Hit ₦1 trillion ($600M+) in one month. 12x volume growth since Stripe acquisition. Serves Nigeria/Ghana/South Africa/Kenya via cards, transfers (50%+ volume), USSD.
★★★★★
Deployment Type
Database Stack
Outcome
Cloud-Based Deployment
Aurora MySQL 2 (MySQL 5.7) to Aurora MySQL 3 (MySQL 8.0)
100% Zero-Downtime Modernization
Deployment Type
Cloud-Based Deployment
Database Stack
Aurora MySQL 2 (MySQL 5.7) to Aurora MySQL 3 (MySQL 8.0)
Outcome
100% Zero-Downtime Modernization

Business Challenges

Overview
In a high-frequency financial environment, "waiting" is a risk. The following bottlenecks presented existential threats to Paystack’s operations:
  • The Cost Leak: Staying on outdatedAurora MySQL 2would have cost over $450K in annual extended support surcharges.
  • The Data Gravity: Moving 63TB of data is a massive risk. Without a cleanup plan, the migration could have caused hours of service outages.
  • The Security Gap :To keep the trust of Tier-1 banks, Paystack needed the modern security standards only available in Aurora MySQL 3.
Goals
The key objectives the client was aiming to achieve:

→ Execute a safe migration that maintains total reliability for merchants.

→ Clean up the system by removing 50TB of old data before the move.

→ Hardened security to meet the highest global financial standards.

→ Modernize the architecture to handle 10x more transaction volume.

Risks if Not Addressed
If left unresolved, these challenges posed serious risks

Risks & Impact if Not Addressed

Performance Issues

Without resolving replication lag and fragmented tables, query performance would continue to degrade, leading to a frustrating customer experience during peak hours.

Business Continuity Risks

Non-standardized backup policies increased the risk of data loss and prolonged outages, potentially disrupting thousands of orders in real-time.

Revenue Loss

Poor performance and downtime during peak times directly impacted Swiggy’s ability to fulfill customer demand, resulting in lost revenue and dissatisfied users.

Escalating Costs

Continued reliance on oversized, under-optimized infrastructure would lead to unnecessary monthly spend, straining the company’s profitability.

Developer Inefficiency

Lack of a stable and scalable database foundation meant developers spent significant time firefighting performance issues instead of innovating on features.

Performance Issues: Replication lag and fragmentation slow order searches and transactions.
Business Continuity Risks: Non-standardized backups mean longer recovery times and higher data-loss risk.
Revenue Loss: Slow page loads or timeouts during peak hours lead to failed checkouts.
Escalating Costs: Over provisioned, under-optimized servers strain profitability
Developer Inefficiency: Engineers spend more time firefighting than building new features
Goals
The key objectives the client was aiming to achieve:
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[Goal 1]
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[Goal 1]
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[Goal 1]

Solution Provided by Mydbops

Mydbops designed a "Resilience First" plan to handle Paystack’s massive scale:

Pre-migration Cleanup

We archived 50TB of old data before the upgrade. This made the databases "lean," reducing the risk of errors during the move.

The Staging Sandbox

We created exact copies of the system to test the new Aurora MySQL 3 performance against real traffic before going live.

Strategic Cost Avoidance

Eliminating the "Obsolescence Tax"

Potential Outdated Support Penalties
$450,000 Estimated Annual Waste (AWS Year 3 Pricing).
Mydbops Managed Modernization
$540,000 Total Capital Reclaimed

The "Hot-Swap"

CutoverUsing precision timing and smart traffic routing, we switched the systems over while they were running. Zero transactions were dropped.

Paystack Aurora MySQL Migration Architecture

Results and Impact

Key Outcomes

Significant Cost & Storage Savings

Archived and Reclaimed 50TB of Aurora Storage and optimized I/O,resulting in an additional $90,000 in ARR savings.

 Perfect Reliability (100% Uptime)

Every payment went through. There were zero dropped queries across all 11 clusters during the entire window.

Faster System Performance

The new environment is tuned for speed, providing a faster experience for Paystack’s merchants and customers.

Ready for Global Growth

The foundation is now "future-proofed" for the next 3 years, ready to support Paystack’s expansion into the US and EU.

Paystak-Mydbops

Your database architecture is either the engine of your growth or the anchor holding you back.Mydbopsspecializes in the kind of high-stakes, hyper-scale engineering that the world's most successful companies likePaystack trust with their core revenue.

Don't let an EOL deadline or data bloat become a business risk. Let's build a foundation that is as ambitious as your roadmap.

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