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Tại sao Connection Pooling lại đặc biệt quan trọng trong PostgreSQL? · ORA·tech

Trung bình Pro#postgresql

Tại sao Connection Pooling lại đặc biệt quan trọng trong PostgreSQL?

15 tháng 2, 2026

Tóm tắt nhanh

Khác với các DB dùng thread, PostgreSQL sử dụng mô hình "process-per-connection", khiến mỗi kết nối mới tiêu tốn nhiều RAM và CPU cho việc chuyển đổi ngữ cảnh (context switching). Connection pooling (như PgBouncer) giúp giới hạn và tái sử dụng kết nối để bảo vệ database khỏi bị quá tải và tối ưu hóa throughput.

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