least_conn not working for me

kenneth.s.brooks nginx-forum at forum.nginx.org
Wed Dec 23 17:36:16 UTC 2020

Thanks for the response.

I understand what you are saying about the worker processes. We have only a
single worker process.

I have 2 upstream servers.

To validate:
I am sending a request for a LARGE file. I see it hit server1. Server1 is
now serving that request for the next couple of minutes.
I send a request for a very tiny file. I see it hit server2. It finishes
(server1 is still processing request #1)
I send a request for a very tiny file. I see it hit server1 (even tho it is
still serving request #1 and server2 is not serving anything)

I repeat that over and over, and I'll see all the subsequent requests being
routed to server1, then 2, then 1 then 2.
If I submit another LARGE file request, if the last request went to server2,
then now I have 2 LARGE file requests being served by server1.

If I submit more requests, they all continue to be equally distributed to
server1 and server2 (even though server1 has 2 active things it is

Is there some sort of a 'fudge factor' or threshold? That there has to be n
number of requests that one server is handling more than another server?  I
wouldn't think so, but I'm at a loss.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,290285,290291#msg-290291

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