gorm golang concurrent connection database error solution

Bottom error error: cannot assign requested address

why

In the concurrent scenario, client frequently requests the port to establish an tcp connection, resulting in the port being exhausted

The solution

root will do

sysctl-w ES21en. ipv4.tcp_timestamps=1 turns on support for TCP timestamp. If this is set to 0, the following setting does not work

sysctl-w net.ipv4.tcp_tw_recycle=1 means to enable quick recovery of ES36en-ES37en sockets in TCP connection