twistd plugin permissions problem causes users to think that tahoe-lafs unit tests failed #1005

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nejucomo · 2010-03-27T18:23:56Z

nejucomo commented

2010-03-27 18:23:56 +00:00

I just installed 1.6.1 on an osx 10.6 box, seemingly successfully:
$ python ./setup.py build
... Output attached.

But when I run unittests many fail:
$ python ./setup.py test
... Output attached.

The first failure appears before unittest output, and may be irrelevant:

Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/python/usage.py", line 241, in parseOptions
    self.postOptions()
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/scripts/trial.py", line 293, in postOptions
    self['reporter'] = self._loadReporterByName(self['reporter'])
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/scripts/trial.py", line 279, in _loadReporterByName
    for p in plugin.getPlugins(itrial.IReporter):
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/plugin.py", line 200, in getPlugins
    allDropins = getCache(package)
--- <exception caught here> ---
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/plugin.py", line 179, in getCache
    dropinPath.setContent(pickle.dumps(dropinDotCache))
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/python/filepath.py", line 623, in setContent
    f = sib.open('w')
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/python/filepath.py", line 433, in open
    return open(self.path, mode+'b')
exceptions.IOError: [Errno 13] Permission denied: '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/plugins/dropin.cache.new'

I just installed 1.6.1 on an osx 10.6 box, seemingly successfully: $ python ./setup.py build ... Output attached. But when I run unittests many fail: $ python ./setup.py test ... Output attached. The first failure appears before unittest output, and may be irrelevant: ``` Traceback (most recent call last): File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/python/usage.py", line 241, in parseOptions self.postOptions() File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/scripts/trial.py", line 293, in postOptions self['reporter'] = self._loadReporterByName(self['reporter']) File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/scripts/trial.py", line 279, in _loadReporterByName for p in plugin.getPlugins(itrial.IReporter): File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/plugin.py", line 200, in getPlugins allDropins = getCache(package) --- <exception caught here> --- File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/plugin.py", line 179, in getCache dropinPath.setContent(pickle.dumps(dropinDotCache)) File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/python/filepath.py", line 623, in setContent f = sib.open('w') File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/python/filepath.py", line 433, in open return open(self.path, mode+'b') exceptions.IOError: [Errno 13] Permission denied: '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/twisted/plugins/dropin.cache.new' ```

nejucomo added the

labels 2010-03-27 18:23:56 +00:00

nejucomo added this to the undecided milestone 2010-03-27 18:23:56 +00:00

nejucomo commented

2010-03-27 18:24:27 +00:00

Attachment tahoe-lafs-1.6.1.build.log (30227 bytes) added

The installation output on osx 10.6

**Attachment** tahoe-lafs-1.6.1.build.log (30227 bytes) added The installation output on osx 10.6

tahoe-lafs-1.6.1.build.log

30 KiB

nejucomo commented

2010-03-27 18:24:48 +00:00

Attachment tahoe-lafs-1.6.1.test.log (15469 bytes) added

The output of: $ python ./setup.py test

**Attachment** tahoe-lafs-1.6.1.test.log (15469 bytes) added The output of: $ python ./setup.py test

tahoe-lafs-1.6.1.test.log

15 KiB

nejucomo commented

2010-03-27 18:38:52 +00:00

From irc:

ducki2p 11:20 
thats a known twisted issue; you need to run twistd --help as root once to complete its setup
nejucomo 11:24 
Oh, thanks!
24:45
I wonder if we need to modify the install instructions for tahoe-lafs in that case.

I did indeed run "sudo twistd --help" then reran the unittests and this exception went away. Attached the new unittest logs.

Notice however there are still failures documented in ticket #1006.

From irc: ``` ducki2p 11:20 thats a known twisted issue; you need to run twistd --help as root once to complete its setup nejucomo 11:24 Oh, thanks! 24:45 I wonder if we need to modify the install instructions for tahoe-lafs in that case. ``` I did indeed run "sudo twistd --help" then reran the unittests and this exception went away. Attached the new unittest logs. Notice however there are still failures documented in ticket #1006.

nejucomo commented

2010-03-27 18:39:17 +00:00

Attachment tahoe-lafs-1.6.1.test2.log (62972 bytes) added

The unittests after running "sudo twistd --help".

**Attachment** tahoe-lafs-1.6.1.test2.log (62972 bytes) added The unittests after running "sudo twistd --help".

tahoe-lafs-1.6.1.test2.log

62 KiB

tahoe-lafs modified the milestone from undecided to 1.7.0

2010-03-29 00:15:01 +00:00

zooko commented

2010-03-29 15:35:17 +00:00

This is Twisted #2409 but let's leave this ticket (Tahoe-LAFS #1005) open in case we can figure out a work-around, possibly involving invoking sudo twistd --help at some point or at least updating the documentation to ask the user to do so.

This is [Twisted #2409](http://twistedmatrix.com/trac/ticket/2409) but let's leave this ticket (Tahoe-LAFS #1005) open in case we can figure out a work-around, possibly involving invoking `sudo twistd --help` at some point or at least updating the documentation to ask the user to do so.

zooko changed title from ~~twisted file permissions cause unittest failures on osx 10.6~~ to twistd plugin permissions problem causes users to think that tahoe-lafs unit tests failed

2010-04-16 21:20:36 +00:00

tahoe-lafs modified the milestone from 1.7.0 to soon

2010-06-19 03:19:38 +00:00

davidsarah commented

2011-07-23 00:01:24 +00:00

The fix for Twisted #2409 was released in Twisted v11.0. I don't think we need to do anything to work around it in Tahoe-LAFS; the problem will go away as people use newer versions of Twisted.

The [fix](http://twistedmatrix.com/trac/changeset/31246) for [Twisted #2409](http://twistedmatrix.com/trac/ticket/2409) was released in Twisted v11.0. I don't think we need to do anything to work around it in Tahoe-LAFS; the problem will go away as people use newer versions of Twisted.

tahoe-lafs added the

invalid

label 2011-07-23 00:01:24 +00:00

davidsarah closed this issue

2011-07-23 00:01:24 +00:00

davidsarah commented

2011-07-23 00:06:00 +00:00

Note that fixed versions of Twisted will still print the single line "Unexpected error while writing cache file". We might want to document that that is harmless.

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