Re: [modwsgi] Emergency [error] child process 11571 still did not exit, sending a SIGKILL

[Graham Dumpleton]

Are you using embedded mode or daemon mode?

Are you trying to restart or shutdown Apache when you get the error?

Graham

On 5 September 2012 22:17, Qitong Hu <huqi...@videosemantics.com> wrote:
> Hi all,
> I am trying to use wsgi with django.
> Now, when I use django's python manage.py runserver, it works fine.
> But when I use apache directly, there is an error [error] child process
> 11571 still did not exit, sending a SIGKILL and Error opening file for
> reading: Permission denied
> [Wed Sep 05 12:07:36 2012] [error] [client ****] Premature end of script
> headers: django.wsgi
>
> In the python code, I think it is caused by gensim and nltk module loading,
> since if I comment that, the apache works fine.
> Does any one have experienced similar situation and could help me here to
> solve this problem?
> Thanks a lot
>
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[Qitong Hu]

Hi,

Thanks for your reply.

I do have tried to restart, stop/start Apache, it does not work.

I'm following http://blog.stannard.net.au/2010/12/11/installing-django-with-apache-and-mod_wsgi-on-ubuntu-10-04/ as a guide to deploy it. (Sorry that I'm a newbie, cannot tell if it is embedded or daemon)

[Graham Dumpleton]

On 5 September 2012 23:35, Qitong Hu <huqi...@videosemantics.com> wrote:
> Hi,
> Thanks for your reply.
> I do have tried to restart, stop/start Apache, it does not work.

The SIGKILL means that 'stop' of Apache is doing what it is meant to.
It outputs that and force kills the child worker process when the
child process does not shutdown in the required 3 seconds.

The error opening the file is because something in your program is
trying to open a file in a directory which the user that Apache runs
as doesn't have permission to open. Read:

http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Access_Rights_Of_Apache_User

That or you aren't using absolute path names and it isn't opening the
file in the location you think it is. Read:

http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Application_Working_Directory

> I'm following
> http://blog.stannard.net.au/2010/12/11/installing-django-with-apache-and-mod_wsgi-on-ubuntu-10-04/
> as a guide to deploy it. (Sorry that I'm a newbie, cannot tell if it is
> embedded or daemon)

Suggest you read the documentation on the mod_wsgi site.

Being a newbie it would be much safer for you to use daemon mode.

http://code.google.com/p/modwsgi/wiki/QuickConfigurationGuide#Delegation_To_Daemon_Process
http://code.google.com/p/modwsgi/wiki/CheckingYourInstallation#Embedded_Or_Daemon_Mode
http://code.google.com/p/modwsgi/wiki/ProcessesAndThreading

Graham

> https://groups.google.com/d/msg/modwsgi/-/gXcM2vmUfdYJ.