Hello,

We want to limit outgoing(upstream) rate with the fixed string key among
various virtual hosts as follows:

limit_req_zone fixedstring zone=upstream:1m rate=5000r/s;

server {
server_name vhosta;
logation / {
limit_req zone=upstream burst=25;
proxy_pass http://some_upstream;
}
}
server {
server_name vhostb;
logation / {
limit_req zone=vhostb nodelay;
limit_req zone=upstream burst=25;
proxy_pass http://some_upstream;
}
}

But on our test, the nginx server send to upstream server 6738 requests in
a second.
(The vhosta sent 3677 requests, and the vhostb sent 3061 requests)



It seems that each virtual hosts limits 5000r/s and entire nginx will
10000r/s.
Anyway, we will set limit_req_log_level to info level.
Does anyone know limit_req detailed log information?
Our nginx version is nginx version: nginx/1.10.1
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