> > I got another clue, it seems that the python process runs out of
> > file handles. After 10k requests (via ab -c 1 -n 10000) i got
> > several "not found" io exceptions like "/dev/urandom not found",
> > TemplateError: Template xy not found and this one : Error Opening
> > file /path/to/geoip/GeoIP.dat
> > Maybe that is why the mod_python setup runs fine, due to the restart
> > for each request.
> Also make sure you aren't still loading mod_python into Apache if
> using mod_wsgi as the presence of mod_python can in some cases cause
> mod_wsgi to misbehave.
No, mod_python is deactivated, but the file descriptor leak was imho
the problem..
The Fix, for the record :)
--- a/apps/catalog/templatetags/composedimage.py
+++ b/apps/catalog/templatetags/composedimage.py
@@ -105,7 +105,7 @@ class ComposedImage(object):
def _open_svg_as_image(self, fn, width, height, position, factor,
offset): import cairo
import rsvg
- file = tempfile.mkstemp(suffix='.png', prefix='tmc_svg_')[1]
+ fd,file = tempfile.mkstemp(suffix='.png', prefix='tmc_svg_')
fn = smart_str(fn)
svg = rsvg.Handle(file=fn)
@@ -123,7 +123,10 @@ class ComposedImage(object):
surface.write_to_png(file)
image = Image.open(file, "r")
image.convert("RGBA")
+
+ os.close(fd)
os.unlink(file)
Thanks,
Sven
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