我有一个处理上传文件的Django视图，当它被反复调用时，我们总是会遇到内存溢出错误。(我们在Heroku上，所以每个网络动态都有512mb的内存)。在
内存过剩错误表明，每次调用都会增加文件大小的内存使用量，并且内存使用率永远不会下降。我认为服务器将图像读入内存以将其保存到Django模型中，但在完成后永远不会释放内存。在
我认为在函数返回后必须有一个对映像的引用，以防止映像被垃圾回收。但我想不出那会是什么。在
下面是代码的简化版本，我对其进行了测试，以确保它存在相同的问题：def simplified_add_image(request, biz_id):
if request.is_ajax():
# the file is stored raw in the request
newBI = NewBusinessImage(business_id=biz_id, name=request.GET.get("name"), primary_image=True)
newBI.id = uuid.uuid4()
newBI.save()
uniquename = biz_id + ".." + get_a_uuid() + ".jpg"
newBI.original_image.save(uniquename, ContentFile(request.read()))
# this starts a series of tasks to process the image into various sizes.
# don't think it's the problem because it runs on a separate server, and the
# web server is the one that goes over memory
tasks.image_meta_task.delay(uniquename, newBI.id)
return StockJSONResponse(request, {
"success" : True,
})
我真的很感激你的帮助。谢谢！在
粘土
以下是评论中要求的附加信息：
我们将文件存储在Amazon 3上：
^{pr2}$
这是NewBusinessImage模型class NewBusinessImage(models.Model):
id = UUIDField(auto=True,primary_key=True,version=4, default=uuid.uuid4())
business = models.ForeignKey('Business')
name = models.CharField(max_length=100)
original_image = models.ImageField(upload_to='photos/originals/')
thumbnail = models.ImageField(upload_to='photos/thumbnails/')
display_image = models.ImageField(upload_to='photos/displays/')
enlarged_image = models.ImageField(upload_to='photos/enlarged/')
num_views = models.PositiveIntegerField(editable=False, default=0)
primary_image = models.BooleanField(default=False)