Bolt
database
Database Connection Leak - Connections Never Close
Database connections accumulate over time. Pool reaches max connections and new queries fail. Eventually app becomes completely unresponsive.
Connection count grows with each request and never decreases.
Error Messages You Might See
Error: too many connections
Error: no more connections available
Connection pool exhausted
Connection not returned to pool
Common Causes
- Not awaiting database queries properly
- Promise not being resolved/rejected
- Connection created but not returned to pool
- Long-running queries holding connections indefinitely
- Error in query handler not releasing connection
How to Fix It
Always await database calls: await prisma.user.findUnique(...)
Use try/finally to ensure cleanup: try { await db.query(...) } finally { await client.release() }
Set query timeout: Prisma has built-in, use setTimeout for others
Check connection pool size: should be reasonable for concurrent users
Monitor connections: SELECT count(*) FROM pg_stat_activity in PostgreSQL
Real developers can help you.
Nam Tran
10 years as fullstack developer
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
Victor Denisov
Developer
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
AUXLE
I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture.
I played a key role in creating a scalable and maintainable platform to support educators and learners globally.
I'm enthusiastic about embracing new challenges and making meaningful contributions.
Sage Fulcher
Hey I'm Sage! Im a Boston area software engineer who grew up in South Florida. Ive worked at a ton of cool places like a telehealth kidney care startup that took part in a billion dollar merger (Cricket health/Interwell health), a boutique design agency where I got to work on a ton of exciting startups including a photography education app, a collegiate Esports league and more (Philosophie), a data analytics as a service startup in Cambridge (MA) as well as at Phillips and MIT Lincoln Lab where I designed and developed novel network security visualizations and analytics. I've been writing code and furiously devoted to using computers to make people’s lives easier for about 17 years. My degree is in making computers make pretty lights and sounds. Outside of work I love hip hop, the Celtics, professional wrestling, magic the gathering, photography, drumming, and guitars (both making and playing them)
Daniel Vázquez
Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How do I check active connections?
PostgreSQL: SELECT count(*) FROM pg_stat_activity. Should be < max_connections setting
What's a good connection pool size?
Prisma default is 5. Increase for more concurrent users, but don't exceed database limit
Why do connections leak?
Not awaiting promise, error thrown before release, or forgetting to return connection to pool