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Re: limit_req
- To: nginx-ru@xxxxxxxxx
- Subject: Re: limit_req
- From: Konstantin Svist <fry.kun@xxxxxxxxx>
- Date: Sun, 02 Jan 2011 12:01:11 -0800
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On 01/02/2011 11:40 AM, Евгений Торопов wrote:
Добрый вечер,
nginx version: nginx/0.8.54
Отрывок из конфига:
...
limit_req_zone $binary_remote_addr zone=test:10m rate=10000r/s;
location /some/url {
limit_req zone=test;
}
...
Даже при таком огромном рейте видим в error log-е:
...
2011/01/02 19:35:44 [error] 8663#0: *21852 limiting requests, excess: 1.000 by zone "test", client:
xxx.xxx.xxx.xxx, server: site.com, request: "POST /some/url HTTP/1.0", host:
"www.site.com"
2011/01/02 19:35:44 [error] 8663#0: *21853 limiting requests, excess: 1.000 by zone "test", client:
xxx.xxx.xxx.xxx, server: site.com, request: "POST /some/url HTTP/1.0", host:
"www.site.com"
2011/01/02 19:35:44 [error] 8663#0: *21849 limiting requests, excess: 1.000 by zone "test", client:
xxx.xxx.xxx.xxx, server: site.com, request: "POST /some/url HTTP/1.0", host:
"www.site.com"
2011/01/02 19:35:44 [error] 8663#0: *21850 limiting requests, excess: 1.000 by zone "test", client:
xxx.xxx.xxx.xxx, server: site.com, request: "POST /some/url HTTP/1.0", host:
"www.site.com"
...
Расскажите, пожалуйста, как такое возможно.
Спасибо.
Евгений
jt@xxxxxxxxx
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Включите параметр burst=X
Без параметра burst, если новый запрос пришёл в течении 1s/10000 = 10us
от прежде отработанного, то он будет отброшен.
Если же есть burst=X, то до X новых запросов будут отработаны, но
интервал будет увеличен каждый раз на 10us. Если придёт >X запросов в
интервале, они будут отрублены.
HTH
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