UnreadablePostError at /[username]/submission

[ukanga]

UnreadablePostError at /[username]/submission
error during read(65536) on wsgi.input

Request Method: POST
Request URL: https://ona.io/[username]/submission
Django Version: 1.9.5
Python Executable: /.../.virtualenvs/onadata/bin/uwsgi
Python Version: 2.7.6
Python Path: ['/.../.virtualenvs/onadata/src/savreaderwriter/savReaderWriter', '/.../.virtualenvs/onadata/src/savreaderwriter/savReaderWriter/cWriterow', '.', '', '/.../.virtualenvs/onadata/src/django-nose', '/.../.virtualenvs/onadata/src/django-digest', '/.../.virtualenvs/onadata/src/j2xclient', '/.../.virtualenvs/onadata/src/cors-headers', '/.../.virtualenvs/onadata/src/pricing', '/.../.virtualenvs/onadata/src/savreaderwriter', '/.../.virtualenvs/onadata/src/google-export', '/.../.virtualenvs/onadata/lib/python2.7', '/.../.virtualenvs/onadata/lib/python2.7/plat-x86_64-linux-gnu', '/.../.virtualenvs/onadata/lib/python2.7/lib-tk', '/.../.virtualenvs/onadata/lib/python2.7/lib-old', '/.../.virtualenvs/onadata/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/.../.virtualenvs/onadata/local/lib/python2.7/site-packages']
Server time: Thu, 24 Nov 2016 03:38:50 -0500
Installed Applications:
('google_export',
 'pricing',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'django.contrib.admin',
 'django.contrib.admindocs',
 'django.contrib.gis',
 'registration',
 'django_nose',
 'django_digest',
 'corsheaders',
 'oauth2_provider',
 'rest_framework',
 'rest_framework.authtoken',
 'taggit',
 'readonly',
 'onadata.apps.logger',
 'onadata.apps.viewer',
 'onadata.apps.main',
 'onadata.apps.restservice',
 'onadata.apps.api',
 'guardian',
 'djcelery',
 'onadata.apps.sms_support',
 'onadata.libs',
 'reversion')
Installed Middleware:
('onadata.libs.profiling.sql.SqlTimingMiddleware',
 'django.middleware.http.ConditionalGetMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'onadata.libs.utils.middleware.LocaleMiddlewareWithTweaks',
 'django.middleware.csrf.CsrfViewMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'onadata.libs.utils.middleware.HTTPResponseNotAllowedMiddleware',
 'readonly.middleware.DatabaseReadOnlyMiddleware')


Traceback:

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  149.                     response = self.process_exception_by_middleware(e, request)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
  58.         return view_func(*args, **kwargs)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/viewsets.py" in view
  87.             return self.dispatch(request, *args, **kwargs)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/views.py" in dispatch
  466.             response = self.handle_exception(exc)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/views.py" in dispatch
  463.             response = handler(request, *args, **kwargs)

File "./onadata/apps/api/viewsets/xform_submission_viewset.py" in create
  149.             error, instance = create_fn(username, request)

File "./onadata/apps/api/viewsets/xform_submission_viewset.py" in create_instance_from_xml
  75.     xml_file_list = request.FILES.pop('xml_submission_file', [])

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/request.py" in __getattribute__
  353.             return super(Request, self).__getattribute__(attr)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/request.py" in FILES
  383.             self._load_data_and_files()

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/request.py" in _load_data_and_files
  243.             self._data, self._files = self._parse()

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/request.py" in _parse
  289.             parsed = parser.parse(stream, media_type, self.parser_context)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/rest_framework/parsers.py" in parse
  114.             data, files = parser.parse()

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/multipartparser.py" in parse
  209.                         for chunk in field_stream:

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/utils/six.py" in next
  558.             return type(self).__next__(self)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/multipartparser.py" in __next__
  356.             output = next(self._producer)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/utils/six.py" in next
  558.             return type(self).__next__(self)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/multipartparser.py" in __next__
  487.         for bytes in stream:

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/utils/six.py" in next
  558.             return type(self).__next__(self)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/multipartparser.py" in __next__
  356.             output = next(self._producer)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/utils/six.py" in next
  558.             return type(self).__next__(self)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/multipartparser.py" in __next__
  418.             data = self.flo.read(self.chunk_size)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/request.py" in read
  322.             six.reraise(UnreadablePostError, UnreadablePostError(*e.args), sys.exc_info()[2])

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/http/request.py" in read
  320.             return self._stream.read(*args, **kwargs)

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/core/handlers/wsgi.py" in read
  53.             result = self.buffer + self._read_limited(size - len(self.buffer))

File "/.../.virtualenvs/onadata/local/lib/python2.7/site-packages/django/core/handlers/wsgi.py" in _read_limited
  41.         result = self.stream.read(size)

Exception Type: UnreadablePostError at /[username]/submission
Exception Value: error during read(65536) on wsgi.input
Request information:
GET: No GET data

POST: No POST data

FILES: No FILES data

COOKIES: No cookie data

Aha! Link: https://ona.aha.io/features/PROD-654