Re: calling ConTeXt as a background process

[Henning Hraban Ramm <hraban@fiee.net>]

Am 2010-10-07 um 09:06 schrieb Henning Hraban Ramm:

> Hi together!
>
> I'm trying since about a week to get ConTeXt running as a background  
> process of a web application.
> It's always hanging, and I get no log.
>
> "ps axef" shows the call stack:
>
> \_ /var/www/xxx/bin/python /var/www/xxx/releases/current/cerebrale/ 
> manage.py runfcgi method=threaded ...
>    \_ /bin/sh -c cd /var/www/xxx/_textemp && /var/opt/context/tex/ 
> texmf-linux-64/bin/context ...
>        \_ /bin/sh /var/opt/context/tex/texmf-linux-64/bin/context -- 
> purgeall --batchmode --result=/var/www/xxx/_textemp/xxx.pdf
>            \_ texlua /var/opt/context/tex/texmf-linux-64/bin/mtxrun  
> --script context --purgeall --batchmode --result=/ ...
>                \_ [uname] <defunct>
>
> I.e. it looks like texlua calls uname in a way that lets the process  
> hang forever.
> If I call the same from an active shell everything runs fine. Also  
> uname alone works in the shell command.
> Any ideas what I could/should check?
>
> I don't think it could be the PATH, since ConTeXt's bin as well as  
> all the system tools are in:
> PATH=/var/opt/context/tex/texmf-linux-64/bin:/var/www/cerebrale/bin:/ 
> command:/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/ 
> sbin:/usr/X11R6/bin
> TEXMFOS=/var/opt/context/tex/texmf-linux-64
> TEXROOT=/var/opt/context/tex
>
> The user that runs the server process (incl. sub-shell and ConTeXt)  
> owns all the TeX files and the directory.
>
> Maybe it's a Python problem, here's my call:
> subprocess.Popen(cmd.encode('utf-8'), shell=True, stderr=logfile,  
> stdout=logfile)
>
> But I can call several other commands in this way without problems.
> The whole thing (incl. ConTeXt) works on my Mac (OSX 10.5.8) at home.
> Everything I call before ConTeXt shows up in the logfile.

I tried to call mtxrun directly and replaced the calls to uname -m  
with their return value (x86_64).
Now the texlua process itself hangs, even if not "defunct" it doesn't  
do anything:

\_ /var/www/xxx/bin/python /var/www/xxx/releases/current/cerebrale/ 
manage.py runfcgi method=threaded ...
     \_ /bin/sh -c cd /var/www/xxx/_textemp && mtxrun --script context  
"prd_paket --batchmode --once" PATH=/var/opt/context/tex/texmf- 
linux-64/bin:/var/www/xxx/bin:...
         \_ texlua /var/opt/context/tex/texmf-linux-64/bin/mtxrun -- 
script context prd_paket --batchmode --once TEXMFOS=/var/opt/context/ 
tex/texmf-linux-64 VIRTUAL_ENV=/var/www/xxx PATH=/var/opt/context/tex/ 
texmf-linux-64/bin:...

Help?

Greetlings from Lake Constance!
Hraban
---
http://www.fiee.net/texnique/
http://wiki.contextgarden.net
https://www.cacert.org (I'm an assurer)

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