Bolt
database
Prisma Connection Pool Exhausted - Cannot Connect to Database
API requests start failing with 'too many connections' or 'connect ECONNREFUSED' errors. The database was working fine but suddenly stops accepting connections.
This typically happens under load or after the app has been running for a while, and restarting the app temporarily fixes it.
Error Messages You Might See
PrismaClientInitializationError: Can't reach database server at `localhost`
Error: too many connections for role
Error: connect ECONNREFUSED 127.0.0.1:5432
Common Causes
- Prisma Client not being reused across requests - creating new instances continuously
- Database connection pool size too small for concurrent requests
- Connections not being closed properly after queries
- Long-running queries holding connections idle
- Pool timeout set too low, causing connection exhaustion
How to Fix It
Create a singleton Prisma Client instance: export const prisma = new PrismaClient(); // import in routes
Configure connection pool in DATABASE_URL: postgresql://user:pass@host/db?schema=public&connection_limit=5
Add proper error handling and disconnect: process.on('SIGINT', async () => { await prisma.$disconnect(); })
Real developers can help you.
Stanislav Prigodich
15+ years building iOS and web apps at startups and enterprise companies. I want to use that experience to help builders ship real products - when something breaks, I'm here to fix it.
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month.
What I bring to AI-built apps:
- I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0
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Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code.
Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.
rayush33
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Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
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I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies.
Victor Denisov
Developer
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
What's the best way to use Prisma in serverless?
Create a singleton pattern with module-level instantiation to reuse connections across cold starts
What's a safe connection pool size?
For WebContainer: 2-3. For production: 10-20. Adjust based on concurrent users and query patterns
How do I debug connection issues?
Enable Prisma debug logging: DEBUG=prisma:* npm run dev