请求数据读取错误时Django上载失败

我有一个django应用程序可以从 jQuery uploadify ,一个jq插件,使用flash上传文件并给出进度条。

在大约150K下的文件可以工作,但是更大的文件总是失败,几乎总是在192K左右(即3块)完成,有时在160K左右。

exceptions.IOError
request data read error
File "/usr/lib/python2.4/site-packages/django/core/handlers/wsgi.py", line 171, in _get_post
    self._load_post_and_files()
File "/usr/lib/python2.4/site-packages/django/core/handlers/wsgi.py", line 137, in _load_post_and_files
    self._post, self._files = self.parse_file_upload(self.META,     self.environ[\'wsgi.input\'])
File "/usr/lib/python2.4/site-packages/django/http/__init__.py", line 124, in parse_file_upload
    return parser.parse()
File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 192, in parse
    for chunk in field_stream:
File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 314, in next
    output = self._producer.next()
File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 468, in next
    for bytes in stream:
File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 314, in next
    output = self._producer.next()
File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 375, in next
    data = self.flo.read(self.chunk_size)
File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 405, in read
    return self._file.read(num_bytes)

在django开发服务器上本地运行时,大文件可以工作。
我试着把我的 FILE_UPLOAD_HANDLERS = ("django.core.files.uploadhandler.TemporaryFileUploadHandler",) 以防它是内存上传处理程序,但这没什么区别。

有人知道怎么解决这个问题吗?