I think what Calin want is limit the concurrent request number to URI
not from remote ip

I don't know whether " limit_req_zone $uri zone=one:10m rate=1r/s; "
can achieve this.



2011/10/13 Simon Liu <simohayha.bobo@gmail.com>:
> You can use limit req module:  http://wiki.nginx.org/HttpLimitReqModule .
>
> On Thu, Oct 13, 2011 at 9:53 PM, Calin Don <calin@presslabs.com> wrote:
>>
>> Hi, is there a way to limit the number of concurent requests per
>> resource (eg. maximum 3 requests / backend, others waiting on
>> frontend)?
>>
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