first connection time?

hadi.abbasi.programmer · 2018-09-09T14:25:20+00:00

Does jprjr/lua-resty-exec support piping command output to the next command input? For example, I want the Lua script to run a shell command similar to:pigz...

first connection time?

hadi.abbasi.programmer

hey friends

is it possible to calculating the connection time of target host that I want to proxy it using openresty?

connection time is the duration between start time of request (A) and the first connection time(B)!

and hosting waiting time is the duration between first connection time(B) to receiving the first chunk(C)!

so I have the start time of request (A) and the time of first chunk receiving(C), but I don't know how can I get the time of first connection time (B)???

if I could find an event or function on first connection, I could get the time of it by using :

local currentTime = os.time()

thanks a lot...
Best,

Hadi

hadi.abbasi.programmer

I think I have found my way!
this link can help me to finding my expected duration times!
https://www.nginx.com/blog/using-nginx-logging-for-application-performance-monitoring/

$request_time – Full request time, starting when NGINX reads the first byte from the client and ending when NGINX sends the last byte of the response body
$upstream_connect_time – Time spent establishing a connection with an upstream server
$upstream_header_time – Time between establishing a connection to an upstream server and receiving the first byte of the response header
$upstream_response_time – Time between establishing a connection to an upstream server and receiving the last byte of the response body