How to resolve full connection limits in nginx?

When Nginx connections are full, you can try the following solutions:

1. Increase the maximum connection limit of Nginx by modifying the worker_connections parameter in the Nginx configuration file. The default value of this parameter is worker_connections 1024; and can be adjusted according to actual requirements.
2. To increase the number of worker processes in Nginx, you can adjust the worker_processes parameter in the Nginx configuration file. The default setting is “worker_processes auto;” and can be adjusted according to the server’s configuration and hardware resources.
3. Optimize server hardware resources: If the server’s hardware resources are insufficient, such as CPU, memory, or network bandwidth, one option is to upgrade the server hardware configuration or use load balancing to alleviate server pressure.
4. One option:

   Consider using a reverse proxy to help alleviate the load on Nginx. By redirecting some requests through a reverse proxy to other servers for processing, it can effectively reduce the connection load on Nginx.

5. Limiting the number of connections: You can restrict the number of connections per client by configuring Nginx’s limit_conn module. By setting a lower connection limit, you can prevent a single client from occupying too many connection resources.

These are some common solutions, the specific solution needs to be adjusted and selected according to the actual situation. If the problem still persists, further analysis of Nginx logs and server performance data may be needed to identify specific bottlenecks and address them accordingly.