atom feed16 messages in ru.sysoev.nginxRe: [ANN] ngx_echo v0.35: ability to ...
FromSent OnAttachments
John MooreMar 8, 2011 4:07 am 
agentzhMar 8, 2011 4:19 am 
António P. P. AlmeidaMar 8, 2011 10:59 am 
John MooreMar 9, 2011 10:42 am 
Richard KearsleyMar 9, 2011 11:15 am 
John MooreMar 9, 2011 12:39 pm 
agentzhMar 9, 2011 7:38 pm 
agentzhMar 9, 2011 7:52 pm 
Elena ZwetkowMar 10, 2011 12:16 am 
agentzhMar 10, 2011 12:28 am 
Elena ZwetkowMar 10, 2011 1:01 am 
agentzhMar 10, 2011 1:33 am 
Alexander KunzMar 15, 2011 3:14 pm 
agentzhMar 15, 2011 7:28 pm 
Alexander KunzMar 16, 2011 12:22 am 
agentzhMar 16, 2011 12:36 am 
Subject:Re: [ANN] ngx_echo v0.35: ability to POST/PUT local files as subrequest bodies
From:agentzh (agen@gmail.com)
Date:Mar 10, 2011 12:28:20 am
List:ru.sysoev.nginx

On Thu, Mar 10, 2011 at 4:16 PM, Elena Zwetkow <ezwe@gmx.de> wrote:

Hello,

could this be a way to put POST multipart uploads to redis/memcache?

Yes :)

I am right, if i use a fileread with lua in nginx the script is blocking?

Yup.

Any ideas how i can store POST multipart uploads nonblocking?

Use echo_subrequest POST /foo -f /path/to/file for that (combined with ngx_upload, maybe).

I know there is a great file upload module for nginx, but what happens if i use
lua to work on an uploaded file like move / rename / copy uploaded files, this
blocks nginx?

Yes. Most disk operations will block nginx (or some other processes like php).

How can i check if something block nginx?

Maybe configure only 1 nginx worker and try

ab -c 100 -n 10000 http://...

and check the results? ;)

There will be a "body_file" option for ngx_lua's "ngx.location.capture" and "ngx.location.capture_multi" Lua functions, similar to echo_subrequest's -f option.

But nginx may also block even if itself does the disk operations.

A work-around is to start a few more nginx worker processes, just like how apache and php-fpm has been doing for years ;)

Cheers, -agentzh

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