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Tengo un problema extraño con MemoryError en mi proyecto Django.Django mod_wsgi MemoryError
- Ubuntu 11
- Apache 2
- Nginx
- mod_wsgi
- python2.7
tengo una etiqueta de plantilla que se redimensionar imágenes utilizando PIL y funciona muy bien en mi dev- máquina, pero en producción causa un error 500 con imágenes grandes (~ 800 px). La etiqueta de plantilla parece funcionar sin problemas, pero solo si la imagen original ya es muy pequeña. La etiqueta de plantilla es una versión modificada de http://djangosnippets.org/snippets/1944/
Acabo de intentar recompilar mod_wsgi para python2.7 - el mismo error.
¿Hay alguna forma de asignar más memoria o quizás algo más que simplemente no entiendo?
¡Cualquier ayuda sería muy apreciada!
Rastreo por correo electrónico a mí es:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 111, in get_response
response = callback(request, *callback_args, **callback_kwargs)
File "/var/www/rizzyhome.com/www/django/rizzyhome/products/views.py", line 31, in designs
context_instance=RequestContext(request)
File "/usr/local/lib/python2.7/dist-packages/django/shortcuts/__init__.py", line 20, in render_to_response
return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader.py", line 188, in render_to_string
return t.render(context_instance)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 123, in render
return self._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 117, in _render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 127, in render
return compiled_parent._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 117, in _render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 127, in render
return compiled_parent._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 117, in _render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 64, in render
result = block.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 64, in render
result = block.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", line 227, in render
nodelist.append(node.render(context))
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 885, in render
return func(*func_args)
File "/var/www/rizzyhome.com/www/django/rizzyhome/products/templatetags/yair.py", line 108, in thumbnail
import Image, ImageOps
File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 45, in <module>
__import__("FixTk")
File "/usr/lib/python2.7/lib-tk/FixTk.py", line 15, in <module>
import ctypes
File "/usr/lib/python2.7/ctypes/__init__.py", line 549, in <module>
CFUNCTYPE(c_int)(lambda: None)
MemoryError
Editar: Adición de código
import os, errno
from django import template
from django.conf import settings
register = template.Library()
def _mkdir_p(path):
try:
os.makedirs(path)
except OSError as exc: # Python >2.5
if exc.errno == errno.EEXIST:
pass
else: raise
@register.simple_tag
def thumbnail(image_url, width, height, THIS_ROOT=settings.MEDIA_ROOT, THIS_URL=settings.MEDIA_URL, img_w=None, img_h=None, method="crop"):
"""
Given the url to an image, resizes the image using the given width and
height on the first time it is requested, and returns the url to the new
resized image. If width or height are zero then the original ratio is
maintained.
"""
if not img_w:
img_w = width
if not img_h:
img_w = height
image_url = unicode(image_url)
# determine new paths
resized_image_reduced = os.path.join('_resized_', image_url.replace(THIS_ROOT, ''))
file_name, file_ext = os.path.basename(resized_image_reduced).split(os.extsep)
resized_image_absolute_path = os.path.join(
THIS_ROOT,
os.path.dirname(resized_image_reduced),
u'%s__%05d-%05d_%s%s%s' % (file_name, width, height, method, os.extsep, file_ext)
)
resized_image_relative_url = os.path.join(
THIS_URL,
os.path.dirname(resized_image_reduced),
u'%s__%05d-%05d_%s%s%s' % (file_name, width, height, method, os.extsep, file_ext)
)
# make sure target directory exists
_mkdir_p(os.path.realpath(os.path.dirname(resized_image_absolute_path)))
# abort if thumbnail exists, original image doesn't exist, invalid width or
# height are given, or PIL not installed, or thumbnail is newer than source image
if os.path.exists(resized_image_absolute_path):
if os.path.exists(image_url):
if os.path.getmtime(resized_image_absolute_path) > os.path.getmtime(image_url):
return resized_image_relative_url
else:
return resized_image_relative_url
if not image_url:
return ""
try:
width = int(width)
height = int(height)
except ValueError:
return resized_image_relative_url
if not os.path.exists(image_url) or (width == 0 and height == 0):
return image_url
try:
from PIL import Image, ImageOps
except ImportError:
return resized_image_relative_url
# open image, determine ratio if required and resize/crop/save
image = Image.open(image_url)
if width == 0:
width = image.size[0] * height/image.size[1]
elif height == 0:
height = image.size[1] * width/image.size[0]
if image.mode not in ("L", "RGB"):
image = image.convert("RGB")
try:
if method == 'scale':
image.thumbnail((width, height), Image.ANTIALIAS)
new_w, new_h = image.size
x1 = (img_w-new_w) /2
y1 = (img_h-new_h)
new_image = Image.new(image.mode, (img_w, img_h), (255,255,255))
new_image.paste(image, (x1,y1))
new_image.save(
resized_image_absolute_path,
"JPEG",
quality=100
)
elif method == 'crop':
image = ImageOps.fit(image, (width, height), Image.ANTIALIAS)
image.save(
resized_image_absolute_path,
"JPEG",
quality=100
)
except Exception, e:
raise
return resized_image_relative_url
return resized_image_relative_url
Publique el código real. – agf
Agregué mi guión (modificado) a mi publicación original, ¡gracias! – sframe
¿Está ejecutando SELinux en producción? Hay algunos problemas conocidos con ctypes en algunas plataformas con selinux habilitado: http://stackoverflow.com/questions/3762566/occasional-ctypes-error-importing-numpy-from-mod-wsgi-django-app – GDorn