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nondeterministic failure of allmydata.test.test_introducer.SystemTest.test_system on Windows: Address already in use #1595

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opened 2011-11-23 02:54:45 +00:00 by davidsarah · 2 comments
davidsarah commented 2011-11-23 02:54:45 +00:00
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(https://tahoe-lafs.org/buildbot-tahoe-lafs/builders/Marcus%20Cygwin%20WinXP/builds/8/steps/test/logs/stdio) :

[ERROR]
Traceback (most recent call last):
  File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/src/allmydata/test/test_introducer.py", line 217, in _restart_introducer_tub
    self.create_tub(self.central_portnum)
  File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/src/allmydata/test/test_introducer.py", line 85, in create_tub
    l = tub.listenOn("tcp:%d" % portnum)
  File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/support/lib/python2.6/site-packages/foolscap-0.6.2-py2.6.egg/foolscap/pb.py", line 573, in listenOn
    l.addTub(self)
  File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/support/lib/python2.6/site-packages/foolscap-0.6.2-py2.6.egg/foolscap/pb.py", line 111, in addTub
    self.s.setServiceParent(self.parentTub)
  File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/service.py", line 186, in setServiceParent
    self.parent.addService(self)
  File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/service.py", line 308, in addService
    service.privilegedStartService()
  File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/internet.py", line 105, in privilegedStartService
    self._port = self._getPort()
  File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/internet.py", line 133, in _getPort
    'listen%s' % (self.method,))(*self.args, **self.kwargs)
  File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/internet/posixbase.py", line 431, in listenTCP
    p.startListening()
  File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/internet/tcp.py", line 622, in startListening
    raise CannotListenError, (self.interface, self.port, le)
twisted.internet.error.CannotListenError: Couldn't listen on any:2795: [Errno 112] Address already in use.

allmydata.test.test_introducer.SystemTest.test_system

This is on Windows cygwin. I don't know whether it is specific to cygwin; I seem to remember that Windows in general will give an error if you try to reuse a port just after it has been released.

(https://tahoe-lafs.org/buildbot-tahoe-lafs/builders/Marcus%20Cygwin%20WinXP/builds/8/steps/test/logs/stdio) : ``` [ERROR] Traceback (most recent call last): File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/src/allmydata/test/test_introducer.py", line 217, in _restart_introducer_tub self.create_tub(self.central_portnum) File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/src/allmydata/test/test_introducer.py", line 85, in create_tub l = tub.listenOn("tcp:%d" % portnum) File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/support/lib/python2.6/site-packages/foolscap-0.6.2-py2.6.egg/foolscap/pb.py", line 573, in listenOn l.addTub(self) File "/home/marcus/bbtahoe/Marcus_Cygwin_WinXP/build/support/lib/python2.6/site-packages/foolscap-0.6.2-py2.6.egg/foolscap/pb.py", line 111, in addTub self.s.setServiceParent(self.parentTub) File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/service.py", line 186, in setServiceParent self.parent.addService(self) File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/service.py", line 308, in addService service.privilegedStartService() File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/internet.py", line 105, in privilegedStartService self._port = self._getPort() File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/application/internet.py", line 133, in _getPort 'listen%s' % (self.method,))(*self.args, **self.kwargs) File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/internet/posixbase.py", line 431, in listenTCP p.startListening() File "/usr/lib/python2.6/site-packages/Twisted-11.1.0-py2.6-cygwin-1.7.9-i686.egg/twisted/internet/tcp.py", line 622, in startListening raise CannotListenError, (self.interface, self.port, le) twisted.internet.error.CannotListenError: Couldn't listen on any:2795: [Errno 112] Address already in use. allmydata.test.test_introducer.SystemTest.test_system ``` This is on Windows cygwin. I don't know whether it is specific to cygwin; I seem to remember that Windows in general will give an error if you try to reuse a port just after it has been released.
tahoe-lafs added the
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1.9.0
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tahoe-lafs added this to the undecided milestone 2011-11-23 02:54:45 +00:00
exarkun commented 2018-05-23 15:34:47 +00:00
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The test has since been renamed but the underlying problem still exists. See #2787 for details.

The problem is also cross-platform (though different environments may encounter the problem with different frequency).

I've fixed the problem for non-Windows (:/) platforms. See https://github.com/tahoe-lafs/tahoe-lafs/pull/501 for the fix. See #2927 for the Windows fix.

The test has since been renamed but the underlying problem still exists. See #2787 for details. The problem is also cross-platform (though different environments may encounter the problem with different frequency). I've fixed the problem for non-Windows (:/) platforms. See <https://github.com/tahoe-lafs/tahoe-lafs/pull/501> for the fix. See #2927 for the Windows fix.
exarkun commented 2018-06-08 20:22:06 +00:00
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Fixed in b31b78e6cf7d08da0c5e579083bc36ee27ca7685

Fixed in b31b78e6cf7d08da0c5e579083bc36ee27ca7685
exarkun added the
fixed
 label 2018-06-08 20:22:06 +00:00
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