#27086: running servers.tests hangs in parallel mode
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     Reporter:  cjerdonek      |                    Owner:  nobody
         Type:  Uncategorized  |                   Status:  closed
    Component:  Uncategorized  |                  Version:  master
     Severity:  Normal         |               Resolution:  worksforme
     Keywords:                 |             Triage Stage:  Unreviewed
    Has patch:  0              |      Needs documentation:  0
  Needs tests:  0              |  Patch needs improvement:  0
Easy pickings:  0              |                    UI/UX:  0
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Comment (by cjerdonek):

 I narrowed this down further to the following:

 The hang happens when calling `urllib.request.urlopen()` inside
 `LiveServerBase`.  And digging further, inside CPython's request.py, the
 hang happens when calling `_scproxy._get_proxies()`.

 There seem to be known issues around `_scproxy` in CPython for Mac OS X
 users.  For example, see the following two issues in CPython's bug
 tracker:

 (1) Apple-supplied libsqlite3 on OS X is not fork safe;  can cause
 crashes:

 http://bugs.python.org/issue27126

 (See this comment, in particular:
 http://bugs.python.org/issue27126#msg266405 )

 (2) exception error in _scproxy.so when called after fork

 http://bugs.python.org/issue13829

 There is a chance that there are easy workarounds on the Django side that
 can be made to accommodate Mac OS X users.

 Also, for the record I'm using 10.11.6.

--
Ticket URL: <https://code.djangoproject.com/ticket/27086#comment:6>
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