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Bug 102540 - loss of connection during dep. resolution results in traceback & GUI freeze
Summary: loss of connection during dep. resolution results in traceback & GUI freeze
Keywords:
Status: CLOSED CANTFIX
Alias: None
Product: Red Hat Raw Hide
Classification: Retired
Component: up2date
Version: 1.0
Hardware: i686
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Bret McMillan
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: CambridgeTarget
TreeView+ depends on / blocked
 
Reported: 2003-08-17 02:24 UTC by Barry K. Nathan
Modified: 2007-04-18 16:56 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-10-18 19:39:08 UTC
Embargoed:

Attachments (Terms of Use)

Description Barry K. Nathan 2003-08-17 02:24:26 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703

Description of problem:
If your Internet connection gets disrupted or cut off somehow, when up2date is
resolving dependencies for a yum repository, it will traceback -- and more
importantly, the GUI will be frozen.

Version-Release number of selected component (if applicable):
up2date-3.9.10-2

How reproducible:
Didn't try (yet; I want to submit this bug first)

Steps to Reproduce:
1. Run up2date GUI
2. (may or may not be required) deselect any RHN channels, leaving only Yum
channels selected
3. Select packages to be updated
4. While it's "Testing package set / solving RPM inter-dependencies", make sure
your Internet connection gets disrupted somehow.

    

Actual Results:  Traceback (most recent call last):
  File "/usr/share/rhn/up2date_client/gui.py", line 1620, in onPackagePageNext
    ret = self.__packagePageDryRun()
  File "/usr/share/rhn/up2date_client/gui.py", line 1548, in __packagePageDryRun
   self.__refreshCallback)
  File "/usr/share/rhn/up2date_client/up2date.py", line 469, in dryRun
    ret = depsolve.solvedep()
  File "/usr/share/rhn/up2date_client/depSolver.py", line 634, in solvedep
    ret = self.process_deps(deps)
  File "/usr/share/rhn/up2date_client/depSolver.py", line 601, in process_deps
    changed = self.__dependencies(dependencies)
  File "/usr/share/rhn/up2date_client/depSolver.py", line 447, in __dependencies
   refreshCallback = self.refreshCallback)
  File "/usr/share/rhn/up2date_client/depSolver.py", line 94, in solveDep
    ret = source.solveDep(unknowns, availList, refreshCallback)
  File "/usr/share/rhn/up2date_client/repoBackends/genericSolveDep.py", line 42,
in solveDep
    self.getSolutions(unknowns)
  File "/usr/share/rhn/up2date_client/repoBackends/genericSolveDep.py", line
203, in getSolutions
    hdr = self.getHeader(pkg)
  File "/usr/share/rhn/up2date_client/repoBackends/genericSolveDep.py", line
186, in getHeader
    progressCallback = progressCallback)
  File "/usr/share/rhn/up2date_client/rpcServer.py", line 114, in doCall
    ret = apply(method, args, kwargs)
  File "/usr/share/rhn/up2date_client/repoDirector.py", line 36, in getHeader
    return self.handlers[channel['type']].getHeader(pkg, msgCallback,
progressCallback)
  File "/usr/share/rhn/up2date_client/rpmSource.py", line 210, in getHeader
    header = source.getHeader(pkg, progressCallback = progressCallback)
  File "/usr/share/rhn/up2date_client/repoBackends/yumRepo.py", line 108, in
getHeader
    (fn, h) = urllib.urlretrieve(url)
  File "/usr/lib/python2.2/urllib.py", line 80, in urlretrieve
    return _urlopener.retrieve(url, filename, reporthook, data)
  File "/usr/lib/python2.2/urllib.py", line 210, in retrieve
    fp = self.open(url, data)
  File "/usr/lib/python2.2/urllib.py", line 178, in open
    return getattr(self, name)(url)
  File "/usr/lib/python2.2/urllib.py", line 292, in open_http
    h.endheaders()
  File "/usr/lib/python2.2/httplib.py", line 695, in endheaders
    self._send_output()
  File "/usr/lib/python2.2/httplib.py", line 581, in _send_output
    self.send(msg)
  File "/usr/lib/python2.2/httplib.py", line 548, in send
    self.connect()
  File "/usr/lib/python2.2/httplib.py", line 532, in connect
    raise socket.error, msg
IOError: [Errno socket error] (110, 'Connection timed out')

Expected Results:  I was hoping for a more user-friendly error -- at LEAST don't
just freeze up! I could have been racking up ISDN charges while waiting for the
frozen client. *Especially* if I hadn't started up2date from a gnome-terminal.

Additional info:

This is really another way of triggering bug 88349. (Maybe it's even a dupe? I'm
not sure.) Since this one is triggered by adverse but all-too-commonplace
Internet problems, IMO it's a lot more serious than the generally unrealistic
scenario that's needed for bug 88349 as I originally discovered it.
Comment 1 Barry K. Nathan 2003-08-17 02:35:13 UTC 
Yes, this one is reproducible (with yum repository, haven't tried testing RHN
[Current] repo yet). To reproduce it, I replaced step 4 with "while it's
resolving deps, unplug the Ethernet cable from your computer".

Here's the traceback this time (it's different):

Traceback (most recent call last):
  File "/usr/share/rhn/up2date_client/gui.py", line 1620, in onPackagePageNext
    ret = self.__packagePageDryRun()
  File "/usr/share/rhn/up2date_client/gui.py", line 1548, in __packagePageDryRun
   self.__refreshCallback)
  File "/usr/share/rhn/up2date_client/up2date.py", line 469, in dryRun
    ret = depsolve.solvedep()
  File "/usr/share/rhn/up2date_client/depSolver.py", line 634, in solvedep
    ret = self.process_deps(deps)
  File "/usr/share/rhn/up2date_client/depSolver.py", line 601, in process_deps
    changed = self.__dependencies(dependencies)
  File "/usr/share/rhn/up2date_client/depSolver.py", line 447, in __dependencies
   refreshCallback = self.refreshCallback)
  File "/usr/share/rhn/up2date_client/depSolver.py", line 94, in solveDep
    ret = source.solveDep(unknowns, availList, refreshCallback)
  File "/usr/share/rhn/up2date_client/repoBackends/genericSolveDep.py", line 42,
in solveDep
    self.getSolutions(unknowns)
  File "/usr/share/rhn/up2date_client/repoBackends/genericSolveDep.py", line
203, in getSolutions
    hdr = self.getHeader(pkg)
  File "/usr/share/rhn/up2date_client/repoBackends/genericSolveDep.py", line
183, in getHeader
    self.repos = repoDirector.initRepoDirector()
  File "/usr/share/rhn/up2date_client/repoDirector.py", line 65, in initRepoDirector
    up2dateRepo.register(rd)
  File "/usr/share/rhn/up2date_client/repoBackends/up2dateRepo.py", line 278, in
register
    up2dateRepo = Up2dateRepo()
  File "/usr/share/rhn/up2date_client/repoBackends/up2dateRepo.py", line 236, in
__init__
    li = up2dateAuth.login()
  File "/usr/share/rhn/up2date_client/up2dateAuth.py", line 112, in login
    loginInfo = rpcServer.doCall(server.up2date.login, systemId)
  File "/usr/share/rhn/up2date_client/rpcServer.py", line 124, in doCall
    raise up2dateErrors.CommunicationError(e.args[1])
up2dateErrors.CommunicationError: Error communicating with server. The message was:
Temporary failure in name resolution
Comment 2 Barry K. Nathan 2003-08-17 02:55:08 UTC 
Indeed, the bug is reproducible with both yum and RHN repositories.
Comment 3 Chris Ricker 2003-08-18 13:38:45 UTC 
This might be the same as Bug 89252
Comment 4 Adrian Likins 2003-08-18 21:07:02 UTC 
I'll take a look. Error handling for network failures
for yum/apt is basically totally broken at the moment.
Comment 5 Mattia Verga 2004-02-07 21:15:31 UTC 
I found a similar problem: I recently reinstalled Fedora Core 1 and I
tried to download all the updates at once. If I check "all packets"
only  few are downloaded (often slow, 10-12 kbyte/s, but I'm not sure
if this is a problem due to server bandwidth), then up2date freezes
(no activity of internet connection and the window isn't refreshed).
Then I kill the process, restart up2date, check only packages already
downloaded and install them. Restart up2date, check the remaining
packages and it starts downloading them.
Comment 6 Barry K. Nathan 2005-05-19 06:00:10 UTC 
For the benefit of the peanut gallery, I'll mention that this (or something very
similar) is still present in FC3 & FC4t2. (I don't think I've tried reproducing
on FC4t3 or later yet.)
Comment 7 Bill Nottingham 2006-08-08 01:59:10 UTC 
'Red Hat Raw Hide' refers to the development tree for Red Hat Linux.
Red Hat Linux is no longer supported by Red Hat, Inc. If you are still
running Red Hat Linux, you are strongly advised to upgrade to a
current Fedora Core release or Red Hat Enterprise Linux or comparable.
Some information on which option may be right for you is available at
http://www.redhat.com/rhel/migrate/redhatlinux/.

Red Hat apologizes that these issues were not resolved in a more
timely manner. However, we do want to make sure that important 
don't slip through the cracks. If these issues are still present
in a current release, such as Fedora Core 5, please move these
bugs to that product and version. Note that any remaining Red Hat
Raw Hide bugs will be closed as 'CANTFIX' on September 30, 2006.
Thanks again for your help.
Comment 8 Bill Nottingham 2006-10-18 19:39:08 UTC 
Red Hat Linux is no longer supported by Red Hat, Inc. If you are still
running Red Hat Linux, you are strongly advised to upgrade to a
current Fedora Core release or Red Hat Enterprise Linux or comparable.
Some information on which option may be right for you is available at
http://www.redhat.com/rhel/migrate/redhatlinux/.

Closing as CANTFIX.
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