Hi Chuanwen
Your module did not quite work for me. I opened up a ticket here.
https://github.com/cfsego/nginx-limit-upstream/issues/12
Posted at Nginx Forum:
https://forum.nginx.org/read.php?2,267614,267727#msg-267727
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I wrote a module for nginx 4 years ago which limited the number of
connections to upstream in order that the upstream servers would not be too
busy to work efficiently. Now I think this module is stable, and expect it
to be merged into nginx official if possible.
the code is here:
*https://github.