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using $upstream* variables inside map directive

May 07, 2014 01:38AM
Hello,
I'm trying to avoid caching of small responses from upstreams using map:
map $upstream_http_content_length $dontcache {
default 0;
~^\d\d$ 1;
~^\d$ 1;
}

Unfortunatelly, nginx seems to ignore $upstream* variables at the map processing stage, hence variables like $upstream_http_content_length or $upstream_response_length stay empty when map directive is processed (this can be observed in debug log as "http map started" message). In case I use non-upstream related variables, a map works as expected.

Question: is there any way to use $upstream* vars inside the map directive, or maybe someone can offer alternative way to detect small upstream response in order to bypass cache?

Thank you.
Subject Author Posted

using $upstream* variables inside map directive

Kirill K. May 07, 2014 01:38AM

Re: using $upstream* variables inside map directive

Jonathan Matthews May 07, 2014 06:32AM

Re: using $upstream* variables inside map directive

Kirill K. May 07, 2014 07:44AM

Re: using $upstream* variables inside map directive

Ruslan Ermilov May 07, 2014 08:46AM

Re: using $upstream* variables inside map directive

Kirill K. May 07, 2014 08:53AM

Re: using $upstream* variables inside map directive

Ruslan Ermilov May 07, 2014 10:40AM

Re: using $upstream* variables inside map directive

Kirill K. May 07, 2014 03:44PM

Re: using $upstream* variables inside map directive

unoobee November 11, 2020 12:55PM

Re: using $upstream* variables inside map directive

ru@nginx.com November 11, 2020 02:14PM

Re: using $upstream* variables inside map directive

unoobee November 12, 2020 02:33AM

Re: using $upstream* variables inside map directive

Francis Daly November 12, 2020 03:36AM

Re: using $upstream* variables inside map directive

unoobee November 12, 2020 04:58AM

Re: using $upstream* variables inside map directive

Francis Daly November 12, 2020 09:36AM

Re: using $upstream* variables inside map directive

unoobee November 12, 2020 11:00AM

Re: using $upstream* variables inside map directive

Francis Daly November 12, 2020 11:50AM



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