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Re: Re: How to control the total requests in Ngnix

Maxim Dounin
December 01, 2017 08:48AM
Hello!

On Fri, Dec 01, 2017 at 11:18:06AM +0800, tongshushan@migu.cn wrote:

> I configured as below:
> limit_req_zone "all" zone=all:100m rate=2000r/s;
> limit_req zone=all burst=100 nodelay;
> but when testing,I use tool to send the request at: Qps:486.1(not reach 2000) I got the many many 503 error,and the error info as below:
>
> 2017/12/01 11:08:29 [error] 26592#37196: *15466 limiting requests, excess: 101.000 by zone "all", client: 127.0.0.1, server: localhost, request: "GET /private/rush2purchase/inventory/aquire?productId=product1 HTTP/1.1", host: "localhost"
>
> Why excess: 101.000? I set it as 2000r/s ?

You've configured "burst=100", and nginx starts to reject requests
when the accumulated number of requests (excess) exceeds
the configured burst size.

In short, the algorithm works as follows: every request increments
excess by 1, and decrements it according to the rate configured. If
the resulting value is greater than burst, the request is
rejected. You can read more about the algorithm used in
Wikipedia, see https://en.wikipedia.org/wiki/Leaky_bucket.

--
Maxim Dounin
http://mdounin.ru/
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Subject Author Posted

How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 04:14AM

回复: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 04:16AM

Re: 回复: How to control the total requests in Ngnix

gariac November 30, 2017 04:46AM

Re: 回复: How to control the total requests in Ngnix

gariac November 30, 2017 01:56PM

Re: How to control the total requests in Ngnix

Francis Daly November 30, 2017 05:18AM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 06:54AM

Re: How to control the total requests in Ngnix

pbooth November 30, 2017 05:28PM

Re: How to control the total requests in Ngnix

gariac November 30, 2017 09:10PM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 09:14PM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 07:06AM

Re: Re: How to control the total requests in Ngnix

Francis Daly November 30, 2017 01:40PM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 10:20PM

Re: Re: How to control the total requests in Ngnix

Maxim Dounin December 01, 2017 08:48AM

Re: How to control the total requests in Ngnix

Maxim Dounin December 01, 2017 11:14AM

Re: Re: How to control the total requests in Ngnix

Francis Daly December 02, 2017 06:04AM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn December 02, 2017 11:00PM

Re: Re: How to control the total requests in Ngnix

Francis Daly December 05, 2017 03:54AM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn December 05, 2017 08:52PM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 11:54PM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn November 30, 2017 11:56PM

Re: Re: How to control the total requests in Ngnix

tongshushan@migu.cn December 02, 2017 04:58AM

Re: How to control the total requests in Ngnix

gariac November 30, 2017 11:18PM

Re: How to control the total requests in Ngnix

gariac December 01, 2017 09:46AM

Re: How to control the total requests in Ngnix

gariac December 03, 2017 04:10PM

Re: How to control the total requests in Ngnix

pbooth December 04, 2017 01:14AM

Re: How to control the total requests in Ngnix

pbooth December 04, 2017 04:24AM



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