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From Hajo Locke <Hajo.Lo...@gmx.de>
Subject Re: [users@httpd] proxy_fcgi - force flush to client
Date Thu, 01 Feb 2018 08:10:07 GMT
Hello Luca,

Am 01.02.2018 um 04:46 schrieb Luca Toscano:
> Hi Hajo,
>
> 2018-01-31 1:27 GMT-08:00 Hajo Locke <Hajo.Locke@gmx.de 
> <mailto:Hajo.Locke@gmx.de>>:
>
>     Hello List,
>
>     currently i compare features and behaviour of proxy_fcgi to
>     classical methods like mod_fastcgi/mod_php.
>
>     mod_php/fastcgi have options to send every output from backend
>     immediately to client. So it is possible to see progressing output
>     in browser and not complete websiteoutput at once.
>
>     Here is an example script:
>     https://pastebin.com/4drpgBMq
>
>     if you ran this with php-cli or adjusted mod_php/mod_fastcgi you
>     see progress in browser and numbers 0 1 2 appear one after another.
>     If you run this with proxy_fcgi you will see no progress, but
>     complete output at once.
>
>     mod_proxy knows about worker parameter flushpackets, but the docs
>     say this is in effect only for AJP. I can confirm that this and
>     related options have no effect.
>     There are some workarounds posted in the web, but only one worked
>     for me. If i add following line to the script, i also see a
>     progress with proxy_fcgi in browser:
>
>     header('Content-Encoding: none');
>
>     Somebody knows a working workaround which works without
>     scriptediting? some workarounds tell about using "SetEnv no-gzip
>     1". This was not working for me and iam not please to disable
>     content-compression.
>     Is it planned to support >>flushpackets<< also to proxy_fcgi?
>
>     May be this is not important for typical website but some
>     service/monitoring scripts.
>
>
> The functionality is committed to trunk but never backported to 2.4.x 
> because I was not sure about its importance, it looks like some users 
> might benefit from it :)
>
> The trunk patch is http://svn.apache.org/r1802040, it should apply to 
> 2.4.x if you want to test it and give me some feedback.
>
> Thanks!
I tried this and it works great. I see same behaviour as expected with 
other methods. I think some users might benefit from this. I saw some 
discussion related to this topic and people just ended up by ungainly 
workaround.
Great news!
>
> Luca
>
Thanks,
Hajo

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