How do I configure connection pooling in Go for my database?

How do I configure connection pooling in Go for my database?

To configure connection pooling in Go, you can use the database/sql package. First, ensure you have a database driver installed. Then, you can set the maximum number of open connections and idle connections using db.SetMaxOpenConns() and db.SetMaxIdleConns().

What are the best practices for setting the maximum number of connections?

Best practices suggest setting the maximum number of open connections based on your database's capacity and the expected load. A common approach is to start with a value of 10-20 connections and adjust based on performance monitoring.

Can I adjust the connection pool settings at runtime?

Yes, you can adjust the connection pool settings at runtime using the same methods (SetMaxOpenConns and SetMaxIdleConns). However, be cautious as changing these settings can affect ongoing database operations.

What happens if I exceed the maximum number of connections?

If you exceed the maximum number of connections, new connection requests will be blocked until existing connections are released back to the pool, which can lead to increased latency or timeouts.