DjangoプロジェクトのMemoryErrorに奇妙な問題があります。
- Ubuntu 11
- Apache2
- Nginx
- mod_wsgi
- python2.7
PILを使用して画像のサイズを変更し、開発マシンでうまく機能するテンプレートタグがありますが、本番環境では、大きな画像（〜800px）で500エラーが発生します。テンプレートタグは問題なく機能しているようですが、元の画像がすでに非常に小さい場合に限ります。テンプレートタグは、http：//djangosnippets.org/snippets/1944/の修正バージョンです。
python2.7用にmod_wsgiを再コンパイルしようとしました-同じエラー。
より多くのメモリを割り当てる方法はありますか、それとも私が理解していない何か他のものがありますか？
どんな助けでも大歓迎です！
私に電子メールで送信されたトレースバックは次のとおりです。
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
編集：コードの追加
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