Connection Pool Exhausted: O Erro Que Derruba APIs Spring Boot em Produção

📰 Dev.to · Anderson dos Santos Andrade

Learn to fix the 'Connection Pool Exhausted' error that takes down many Spring Boot APIs in production and understand its importance for API reliability

intermediate Published 14 May 2026
Action Steps
  1. Identify the root cause of the connection pool exhaustion using HikariCP metrics and logging
  2. Configure the HikariCP connection pool settings to optimize performance and prevent exhaustion
  3. Implement connection leak detection and prevention mechanisms to avoid exhausting the pool
  4. Monitor API performance and adjust connection pool settings as needed to maintain reliability
  5. Apply fixes and test the API under load to ensure the connection pool exhaustion error is resolved
Who Needs to Know This

Developers and DevOps teams can benefit from this knowledge to ensure their Spring Boot APIs remain stable and performant in production environments

Key Insight

💡 Optimizing HikariCP connection pool settings and preventing connection leaks are crucial to preventing the 'Connection Pool Exhausted' error in Spring Boot APIs

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💡 Fix the 'Connection Pool Exhausted' error in Spring Boot APIs to prevent downtime and ensure reliability!
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