Looks like the pdf plugin can't handle PDF files.

1. Setup production environment:
2. Enable PDF support: ​https://mediagoblin.readthedocs.io/en/latest/siteadmin/media-types.html#pdf-and-document

sudo apt-get install -y poppler-utils echo "mediagoblin.media_types.pdf" >> mediagoblin_local.ini git submodule init && git submodule update ./bin/gmg dbupdate sudo service mediagoblin-paster restart

3. try to upload attached sample PDF

2017-02-10 00:49:20,798 INFO    [mediagoblin.init.plugins] Importing plugin module: mediagoblin.media_types.pdf
2017-02-10 01:20:43,799 INFO    [mediagoblin.media_types] No plugins handled extension .pdf
2017-02-10 01:20:43,800 INFO    [mediagoblin.media_types] No plugins using two-step checking found

From mediagoblin/media_types/init.py

def sniff_media(media_file, filename):
    '''
    Iterate through the enabled media types and find those suited
    for a certain file.
    '''
    # copy the contents to a .name-enabled temporary file for further checks
    # TODO: there are cases when copying is not required
    tmp_media_file = tempfile.NamedTemporaryFile()
    shutil.copyfileobj(media_file, tmp_media_file)
    media_file.seek(0)
    tmp_media_file.seek(0)
    try:
        return type_match_handler(tmp_media_file, filename)
    except TypeNotFound as e:
        _log.info('No plugins using two-step checking found')

Log messages look similar to #5348.

nginx/1.10.2 mediagoblin 0.9.0

1. setup production environment using nginx and systemd
2. enable audio: ​https://mediagoblin.readthedocs.io/en/latest/siteadmin/media-types.html#audio

[plugins]
[[mediagoblin.plugins.geolocation]]
[[mediagoblin.plugins.basic_auth]]
[[mediagoblin.plugins.processing_info]]
[[mediagoblin.media_types.image]]
[[mediagoblin.media_types.video]]
[[mediagoblin.media_types.audio]]
[[mediagoblin.media_types.pdf]]

3. upload an audio file
4. see "413 Request Entity Too Large"

No further info in /var/log/nginx/mediagoblin.error.log and /var/log/mediagoblin/paster.log.

saw thils for 'make`in the master branch. it was not reproduceable running make again so far.

Writing /tmp/easy_install-w443A9/setuptools-34.1.1/setup.cfg                                                                    
Running setuptools-34.1.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-w443A9/setuptools-34.1.1/egg-dist-tmp-9naPm6
Traceback (most recent call last):
  File "setup.py", line 142, in <module>                                                                 
    "Topic :: Internet :: WWW/HTTP :: Dynamic Content"                                                    
  File "/usr/lib/python2.7/distutils/core.py", line 151, in setup                  
    dist.run_commands()                                        
  File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd) 
  File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command                               
    cmd_obj.run()                                              
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/develop.py", line 36, in run self.install_for_development()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/develop.py", line 150, in install_for_development
    self.process_distribution(None, self.dist, not self.no_deps)                                       
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 757, in process_distribution self.easy_install(dist.as_requirement())
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 674, in easy_install
    return self.install_item(spec, dist.location, tmpdir, deps)                                               
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 700, in install_item
    dists = self.install_eggs(spec, download, tmpdir)                                                     
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 881, in install_eggs
    return self.build_and_install(setup_script, setup_base)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1120, in build_and_install
    self.run_setup(setup_script, setup_base, args)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1106, in run_setup
    run_setup(setup_script, args)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 258, in run_setup
    raise
  File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 198, in setup_context
    yield
  File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 169, in save_modules
    saved_exc.resume()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 144, in resume
    six.reraise(type, exc, self._tb)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 157, in save_modules
    yield saved
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 198, in setup_context
    yield
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 255, in run_setup
    DirectorySandbox(setup_dir).run(runner)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 285, in run
    return func()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 253, in runner
    _execfile(setup_script, ns)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 47, in _execfile
    exec(code, globals, locals)
  File "/tmp/easy_install-w443A9/setuptools-34.1.1/setup.py", line 191, in <module>

  File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
    _setup_distribution = dist = klass(attrs)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/dist.py", line 320, in __init__
    _Distribution.__init__(self, attrs)
  File "/usr/lib/python2.7/distutils/dist.py", line 287, in __init__
    self.finalize_options()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/dist.py", line 387, in finalize_options
    ep.load()(self, ep.name, value)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/dist.py", line 166, in check_specifier
    except packaging.specifiers.InvalidSpecifier as error:
AttributeError: 'module' object has no attribute 'specifiers'
Makefile:123: recipe for target 'bin/python' failed
make: *** [bin/python] Error 1