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POIOError: request data read error
 

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  1. POIOError: request data read error
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    <p>I seem to be getting an IOError: request data read error quite a lot when i'm doing an Ajax upload. For example out of every 5 file uploads it errors out on atleast 3. </p> <p>Other people seem to have had the same issue. Eg. </p> <ul> <li><a href="https://stackoverflow.com/questions/2641665/django-upload-failing-on-request-data-read-error">Django upload failing on request data read error</a></li> <li><a href="https://stackoverflow.com/questions/411902/django-file-upload-failing-occasionally">Django file upload failing occasionally</a></li> </ul> <p>Some other observations:</p> <ul> <li><p>It's definitely not my internet connection or a browser issue. Seems to be happening on all browsers chrome/FF/opera.</p></li> <li><p>I'm running <strong>django 1.1.1 Apache/2.2.14 (Ubuntu) mod_ssl/2.2.14 OpenSSL/0.9.8k mod_wsgi/2.8 Python/2.6.5</strong> on Lucid.</p></li> <li><p>It is also not the file size. I can sometimes upload 1+ MB files but fail on 180 Kb files.</p></li> </ul> <hr> <p><strong>Traceback</strong></p> <pre><code>Traceback (most recent call last): File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/core/handlers/base.py", line 98, in get_response response = middleware_method(request, e) File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/core/handlers/base.py", line 92, in get_response response = callback(request, *callback_args, **callback_kwargs) File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/contrib/auth/decorators.py", line 78, in __call__ return self.view_func(request, *args, **kwargs) File "/home/ubuntu/webapps/anonymous_app/app/do_work/views/__init__.py", line 391, in some_form_ajax_upload f = request.FILES.get('file_upload') File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/core/handlers/wsgi.py", line 187, in _get_files self._load_post_and_files() File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/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 "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/__init__.py", line 124, in parse_file_upload return parser.parse() File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 133, in parse for item_type, meta_data, field_stream in Parser(stream, self._boundary): File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 606, in __iter__ for sub_stream in boundarystream: File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 420, in next return LazyStream(BoundaryIter(self._stream, self._boundary)) File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 446, in __init__ unused_char = self._stream.read(1) File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 299, in read out = ''.join(parts()) File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 292, in parts chunk = self.next() File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 314, in next output = self._producer.next() File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 375, in next data = self.flo.read(self.chunk_size) File "/home/ubuntu/.virtualenvs/anonymous_app/lib/python2.6/site-packages/django/http/multipartparser.py", line 405, in read return self._file.read(num_bytes) IOError: request data read error &lt;WSGIRequest GET:&lt;QueryDict: {}&gt;, POST:&lt;could not parse&gt;, COOKIES:{'__utma': '168279989.1688771210.1285773436.1285773436.1285773436.1', '__utmb': '168279989.20.10.1285773436', '__utmc': '168279989', '__utmz': '168279989.1285773436.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)', 'beta': 'True', 'sessionid': 'b1ecf92f2bba13e1885d07803e10aa03', 'timezone_offset': '-330'}, META:{'CONTENT_LENGTH': '188575', 'CONTENT_TYPE': 'multipart/form-data; boundary=---------------------------57602381214905740261171925981', 'DOCUMENT_ROOT': '/htdocs', 'GATEWAY_INTERFACE': 'CGI/1.1', 'HTTPS': '1', 'HTTP_ACCEPT': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'HTTP_ACCEPT_CHARSET': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', 'HTTP_ACCEPT_ENCODING': 'gzip,deflate', 'HTTP_ACCEPT_LANGUAGE': 'en-us,en;q=0.5', 'HTTP_CONNECTION': 'keep-alive', 'HTTP_COOKIE': 'beta=True; __utma=168279989.1688771210.1285773436.1285773436.1285773436.1; __utmb=168279989.20.10.1285773436; __utmc=168279989; __utmz=168279989.1285773436.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); sessionid=b1ecf92f2bba13e1885d07803e10aa03; timezone_offset=-330', 'HTTP_HOST': 'xxxxxx.compute-1.amazonaws.com', 'HTTP_KEEP_ALIVE': '115', 'HTTP_REFERER': 'https://ec2-184-72-79-96.compute-1.amazonaws.com/do-my-somees/enter/some-documents/', 'HTTP_USER_AGENT': 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.10) Gecko/20100915 Ubuntu/10.04 (lucid) Firefox/3.6.10', 'PATH': '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin', 'PATH_INFO': u'/do-my-somees/enter/some-documents/ajax-upload/Other-some-Document/', 'PATH_TRANSLATED': '/home/ubuntu/webapps/anonymous_app/settings/apache/qa.wsgi.py/do-my-somees/enter/some-documents/ajax-upload/Other-some-Document/', 'QUERY_STRING': '', 'REMOTE_ADDR': '', 'REMOTE_PORT': '15561', 'REQUEST_METHOD': 'POST', 'REQUEST_URI': '/do-my-somees/enter/some-documents/ajax-upload/Other-some-Document/', 'SCRIPT_FILENAME': '/home/ubuntu/webapps/anonymous_app/settings/apache/qa.wsgi.py', 'SCRIPT_NAME': u'', 'SERVER_ADDR': '10.196.142.182', 'SERVER_ADMIN': 'dev@anonymous_app.com', 'SERVER_NAME': 'ec2-184-72-79-96.compute-1.amazonaws.com', 'SERVER_PORT': '443', 'SERVER_PROTOCOL': 'HTTP/1.1', 'SERVER_SIGNATURE': '&lt;address&gt;Apache/2.2.14 (Ubuntu) Server at ec2-184-72-79-96.compute-1.amazonaws.com Port 443&lt;/address&gt;\n', 'SERVER_SOFTWARE': 'Apache/2.2.14 (Ubuntu)', 'SSL_TLS_SNI': 'ec2-184-72-79-96.compute-1.amazonaws.com', 'mod_wsgi.application_group': 'qa.anonymous_app.com|', 'mod_wsgi.callable_object': 'application', 'mod_wsgi.listener_host': '', 'mod_wsgi.listener_port': '443', 'mod_wsgi.process_group': '', 'mod_wsgi.reload_mechanism': '0', 'mod_wsgi.script_reloading': '1', 'mod_wsgi.version': (2, 8), 'wsgi.errors': &lt;mod_wsgi.Log object at 0xb9456860&gt;, 'wsgi.file_wrapper': &lt;built-in method file_wrapper of mod_wsgi.Adapter object at 0xb936a968&gt;, 'wsgi.input': &lt;mod_wsgi.Input object at 0xb9720e30&gt;, 'wsgi.multiprocess': True, 'wsgi.multithread': False, 'wsgi.run_once': False, 'wsgi.url_scheme': 'https', 'wsgi.version': (1, 0)}&gt; 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