The following picture details the hardware configuration of a single server, the NGINX configuration, the Tomcat configuration, and the number of file handles.

1. With the current situation, how to optimize the overall performance of the server again to the optimal?

2. The number of file handles can not be set after modification. Various methods have been tried.

Nginx configuration parameters

Nginx distributes the Tomcat configuration

Tomcat’s current configuration parameters

CPU information

Number of file handles information

Modify the number of file handles, but cannot be modified

System runtime condition