少于1分钟
https://nginx.org/en/docs/stream/ngx_stream_set_module.html
The ngx_stream_set_module
module (1.19.3) allows setting a value for a variable.
server {
listen 12345;
set $true 1;
}
Syntax:set $variable value;
Default: —
Context: server
Sets a value
for the specified variable
. The value
can contain text, variables, and their combination.