Django database connection pooling for performance

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Connection pooling reuses database connections instead of creating new ones per request. I use django-db-pool or configure persistent connections with CONN_MAX_AGE. This reduces connection overhead significantly. For high-traffic sites, I set appropriate pool sizes. Too many connections can overwhelm the database. I monitor active connections and adjust settings. Connection pooling works with PostgreSQL's pgbouncer or MySQL's connection pool. This is crucial for production performance, especially with many concurrent requests.