buildbot: support.transient_internet() doesn't catch DNS socket.gaierror

[vstinner]

BPO	8835
Nosy	@pitrou, @vstinner
Files	transilient_internet_dns.patch

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/vstinner'
closed_at = <Date 2010-09-10.22:08:31.065>
created_at = <Date 2010-05-27.21:47:35.558>
labels = ['tests']
title = "buildbot: support.transient_internet() doesn't catch DNS socket.gaierror"
updated_at = <Date 2010-09-10.22:08:31.064>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2010-09-10.22:08:31.064>
actor = 'pitrou'
assignee = 'vstinner'
closed = True
closed_date = <Date 2010-09-10.22:08:31.065>
closer = 'pitrou'
components = ['Tests']
creation = <Date 2010-05-27.21:47:35.558>
creator = 'vstinner'
dependencies = []
files = ['17477']
hgrepos = []
issue_num = 8835
keywords = ['patch']
message_count = 6.0
messages = ['106617', '106619', '106620', '106622', '106646', '106682']
nosy_count = 2.0
nosy_names = ['pitrou', 'vstinner']
pr_nums = []
priority = 'normal'
resolution = 'out of date'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue8835'
versions = ['Python 2.7', 'Python 3.2']

[vstinner]

The nameserver responsible of sha2.hboeck.de is down and this hostname is used in test_ssl. The result is that all trunk buildbots are red (error).

support.transient_internet() should catch socket.gaierror.

--

One example: http://www.python.org/dev/buildbot/all/builders/amd64%20gentoo%20trunk/builds/1007

Traceback (most recent call last):
  File ".../Lib/test/test_ssl.py", line 261, in test_algorithms
    s.connect(remote)
  ...
gaierror: [Errno -2] Name or service not known

[vstinner]

Patch to catch gaierror(EAI_NODATA) and gaierror(EAI_NONAME).

[pitrou]

Looks ok to me.

[vstinner]

I commited the patch as r81571 in trunk. Wait for the buildbot before porting it to other branches.

[vstinner]

There is another error:

test test_ssl failed -- Traceback (most recent call last):
  File "/scratch/pybot-buildarea/trunk.klose-ubuntu-i386/build/Lib/test/test_ssl.py", line 261, in test_algorithms
    s.connect(remote)
  File "/scratch/pybot-buildarea/trunk.klose-ubuntu-i386/build/Lib/ssl.py", line 292, in connect
    socket.connect(self, addr)
  File "/scratch/pybot-buildarea/trunk.klose-ubuntu-i386/build/Lib/socket.py", line 222, in meth
    return getattr(self._sock,name)(*args)
error: [Errno 110] Connection timed out

transient_internet() should also catch socket.error(errno.ETIMEDOUT).

--

See also bpo-8455, bpo-8499 and bpo-8574.

[pitrou]

I commited the patch as r81571 in trunk.

Apparently it's ok.