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test_multiprocessing hangs in TestZZZNumberOfObjects after unittest traceback patch #51563

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kristjanvalur mannequin opened this issue Nov 13, 2009 · 3 comments
Closed

test_multiprocessing hangs in TestZZZNumberOfObjects after unittest traceback patch #51563

kristjanvalur mannequin opened this issue Nov 13, 2009 · 3 comments
Labels
tests Tests in the Lib/test dir type-bug An unexpected behavior, bug, or error

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@kristjanvalur
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kristjanvalur mannequin commented Nov 13, 2009

BPO 7314
Nosy @kristjanvalur, @bitdancer
Superseder
  • bpo-7318: multiprocessing should not wait endlessly
    		•

    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 = None
closed_at = <Date 2009-11-17.10:53:28.517>
created_at = <Date 2009-11-13.16:52:53.267>
labels = ['type-bug', 'tests']
title = 'test_multiprocessing hangs in TestZZZNumberOfObjects after unittest traceback patch'
updated_at = <Date 2009-11-17.10:53:28.515>
user = 'https://github.com/kristjanvalur'

    bugs.python.org fields:

    activity = <Date 2009-11-17.10:53:28.515>
actor = 'kristjan.jonsson'
assignee = 'none'
closed = True
closed_date = <Date 2009-11-17.10:53:28.517>
closer = 'kristjan.jonsson'
components = ['Tests']
creation = <Date 2009-11-13.16:52:53.267>
creator = 'kristjan.jonsson'
dependencies = []
files = []
hgrepos = []
issue_num = 7314
keywords = ['buildbot']
message_count = 3.0
messages = ['95186', '95191', '95378']
nosy_count = 2.0
nosy_names = ['kristjan.jonsson', 'r.david.murray']
pr_nums = []
priority = 'high'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = '7318'
type = 'behavior'
url = 'https://bugs.python.org/issue7314'
versions = ['Python 3.2']
    @kristjanvalur
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    kristjanvalur mannequin commented Nov 13, 2009

    Running a debug python from the py3k branch on my windows 7 machine, 64
    bit, test_multiprocessing hangs in the _TestZZZNumberOfObjects test.

    I don't know this module, but I did a little digging:
    The main process is in the gc.collec() causing some manager object to
    call a _decref() method, which is initiating a socket connection to a
    child process (I presume.) This is spinning endlessly because the
    connection is constantly refused.

    The child processes don't have any sockets open (according to the
    resource monitor) and when I look at the state they are in, the are
    stuck waiting for a ReadFile to succeed. The python traceback appears
    to be (innermost first, line numbers approximate:)
    queues.py:349
    pool.py:45
    process.py:83
    process.py:215
    forking.py:326

    @kristjanvalur kristjanvalur mannequin added tests Tests in the Lib/test dir type-bug An unexpected behavior, bug, or error labels Nov 13, 2009
    @bitdancer
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    See bpo-7060.

    @bitdancer bitdancer changed the title test_multiprocessing hangs on Windows 7 64 bit test_multiprocessing hangs in TestZZZNumberOfObjects after unittest traceback patch Nov 13, 2009
    @kristjanvalur
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    kristjanvalur mannequin commented Nov 17, 2009

    Ok, I'm closing this as a duplicate.

    @kristjanvalur kristjanvalur mannequin closed this as completed Nov 17, 2009
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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