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Re: How to sort parameters in nginx cache key

Valentin V. Bartenev
September 16, 2014 06:06PM
On Tuesday 16 September 2014 14:32:41 Wei Chen wrote:
> Hi:
>
> We are experiencing low cache hit ratio in Nginx server. It turned out
> that one reason is client may be sending the same requests with
> parameters in different orders.
>
> e.g.
>
> foo?p1=a&p2=b&p3=c
> foo?p2=b&p1=a&p3=c
>
> And our cache key is set as
> proxy_cache_key $uri$is_args$args;
>
> It is not feasible to change all clients to resort their urls. Is
> there any way in Nginx to address that?
>

You can sort them manually:

proxy_cache_key $uri$is_args$arg_p1&$arg_p2&$arg_p3;

wbr, Valentin V. Bartenev

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Subject Author Posted

How to sort parameters in nginx cache key

Wei Chen September 16, 2014 05:34PM

Re: How to sort parameters in nginx cache key

Valentin V. Bartenev September 16, 2014 06:06PM

Re: How to sort parameters in nginx cache key

aircw September 16, 2014 09:34PM



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