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huylenq 2021-12-15 22:29:57 +07:00
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@ -882,12 +882,17 @@ Load balancers can also help with horizontal scaling, improving performance and
* Downstream servers such as caches and databases need to handle more simultaneous connections as upstream servers scale out * Downstream servers such as caches and databases need to handle more simultaneous connections as upstream servers scale out
### Disadvantage(s): load balancer ### Disadvantage(s): load balancer
### Bất lợi của cân bằng tải
* The load balancer can become a performance bottleneck if it does not have enough resources or if it is not configured properly. * The load balancer can become a performance bottleneck if it does not have enough resources or if it is not configured properly.
* Cân bằng tải có thể trở thành một điểm nghẽn hiệu suất nếu nó không có đủ tài nguyên hoặc nếu không được cấu hình phù hợp.
* Introducing a load balancer to help eliminate a single point of failure results in increased complexity. * Introducing a load balancer to help eliminate a single point of failure results in increased complexity.
* Việc đưa vào một cân bằng tải sẽ giúp triệt tiêu "single point of failure" sẽ làm tăng thêm tính phức tạp. # FIXME: incomplete translation
* A single load balancer is a single point of failure, configuring multiple load balancers further increases complexity. * A single load balancer is a single point of failure, configuring multiple load balancers further increases complexity.
* Bản thân một cân bằng tải là một "single point of failure", cấu hình thêm nhiều cân bằng tải càng tăng thêm tính phức tạp.
### Source(s) and further reading ### Source(s) and further reading
### Nguồn đọc thêm
* [NGINX architecture](https://www.nginx.com/blog/inside-nginx-how-we-designed-for-performance-scale/) * [NGINX architecture](https://www.nginx.com/blog/inside-nginx-how-we-designed-for-performance-scale/)
* [HAProxy architecture guide](http://www.haproxy.org/download/1.2/doc/architecture.txt) * [HAProxy architecture guide](http://www.haproxy.org/download/1.2/doc/architecture.txt)