Hi Graham.
Ok, so I basically put:
import sys, os
os.system('ulimit -a')
at the top of the wsgi.py file
Then later in def application I put:
uval = os.system('ulimit -a')
output = ' '
output += 'os.system = %s\n' % repr(uval)
etc etc
return [output]
-----
The only relevant information I got was on the page which said:
os.system = -1
But nothing relevant in error.log file near as I can tell.
Steve
On Sunday, November 30, 2014 4:12:05 AM UTC-5, Graham Dumpleton wrote:
>
>
> On 30/11/2014, at 5:59 PM, Steve M <[email protected] <javascript:>>
> wrote:
>
> > Hello, the problem I am having is that mod_wsgi fails if I set process
> to anything greater than 1 in the WSGIDaemonProcess process=1
> >
> > This is my current setup:
> > [notice] Apache/2.2.14 (Ubuntu) mod_wsgi/4.4.1 Python/2.7.6 configured
> -- resuming normal operations
> >
> > I compiled mod_wsgi from source.
> >
> > This seems to be the key error, but I am guessing:
> > [alert] (11)Resource temporarily unavailable: mod_wsgi (pid=1287):
> Couldn't create worker thread 9 in daemon process 'server_site_a'.
> > Several of those pop up in the error log.
> >
> > WSGI settings in virtualhost:
> > WSGIDaemonProcess server_site_a processes=1 threads=10
> display-name=%{GROUP}
> > WSGIProcessGroup server_site_a
> > WSGIApplicationGroup %{GLOBAL}
> >
> >
> > In main apache2.conf:
> > WSGIRestrictedEmbedded On
> >
> > And mpm_worker_module settings:
> >
> > StartServers 10
> > MaxClients 15
> > MaxRequestsPerChild 256
> >
> > MinSpareThreads 10
> > MaxSpareThreads 20
> > ThreadsPerChild 15
> > ServerLimit 80
> >
> > MaxMemFree 512
> >
> >
> > After watching Grahams videos on making apache suck less for python I
> took some of his advice
> > and decided to start fiddling with the apache settings.
> > I first started off by getting apache to come up without errors using
> mpm_worker.
> > Once I had a baseline for apache I started to fiddle with mod_wsgi.
> > So that is how I arrived at the settings.
> >
> > Would appreciate any help.
>
>
> Manual page entry for pthread_create() says:
>
> ERRORS
> pthread_create() will fail if:
>
> [EAGAIN] The system lacked the necessary resources to
> create
> another thread, or the system-imposed limit on the
> total number of threads in a process
> [PTHREAD_THREADS_MAX] would be exceeded.
>
> This would therefore tend to indicate it is an issue with the limits on
> the user Apache ends up running as, or the system as a whole.
>
> Can you start by putting back to a working configuration and then in a
> WSGI hello world add:
>
> import os
> os.system('ulimit -a')
>
> and hit the URL for the hello world script.
>
> Then get from the log file what that produces.
>
> BTW, appreciate that you are at least trying to make changes as many these
> days just give and stop using mod_wsgi. :-(
>
> If we can sort out what the restriction is, I'll point out a few things
> which still need fixing in what you quote.
>
> Graham
>
>
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