[Buildbot-devel] Strange problem with git-fetch

[David Whittington]

I experience a rather strange problem with a buildbot slave the other
day. When doing an update the slave reported the following exception:

2008/02/26 00:05 CST [Broker,client]
SlaveBuilder.remote_print(master-mac-ppc): message from master:
ping2008/02/26 00:05 CST [Broker,client]
SlaveBuilder.remote_ping(<SlaveBuilder 'master-mac-ppc' at 16937768>)
2008/02/26 00:05 CST [Broker,client] <SlaveBuilder 'master-mac-ppc' at
16937768>.startBuild
2008/02/26 00:05 CST [Broker,client]  startCommand:git [id 14]
2008/02/26 00:05 CST [Broker,client] ShellCommand._startCommand
2008/02/26 00:05 CST [Broker,client]  git-fetch git://git.rubini.us/code master
2008/02/26 00:05 CST [Broker,client]   in dir
/Volumes/susie/cremes/developer/projects/ruby/rubinius_bot/rubinius-master-mac-ppc/build
(timeout 1200 secs)
2008/02/26 00:05 CST [Broker,client]   watching logfiles {}
2008/02/26 00:05 CST [Broker,client]   argv: ['git-fetch',
'git://git.rubini.us/code', 'master']
2008/02/26 00:05 CST [Broker,client]  environment: {'TERM':
'xterm-color', 'SHELL': '/bin/bash', 'SHLVL': '1', 'SSH_TTY':
'/dev/ttys014', 'OLDPWD':
'/Users/cremes/developer/projects/ruby/rubinius_bot/info',
'SSH_CLIENT': '64.202.118.8 64857 22', 'LIBTOOLIZE': 'glibtoolize',
'PWD': '/Users/cremes/developer/projects/ruby', 'CVS_RSH':
'/usr/bin/ssh', 'LOGNAME': 'cremes', 'USER': 'cremes', 'MANPATH':
'/usr/share/man:/usr/local/share/man:/usr/X11/man', 'MAIL':
'/var/mail/cremes', 'PATH':
'/opt/local/bin:/opt/local/apache2/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/Developer/Tools:/Users/cremes/bin:/opt/local/sbin:/usr/local/mysql/bin:/opt/local/transcode/bin',
'SSH_CONNECTION': '64.202.118.8 64857 75.3.115.48 22', 'HOME':
'/Users/cremes', 'CVSROOT':
':ext:cremes at cvs.opendarwin.org:/Volumes/src/cvs/od', '_':
'/usr/local/bin/buildbot', 'EDITOR': 'vi'}
2008/02/26 00:05 CST [-] command finished with signal None, exit code 1
2008/02/26 00:05 CST [-] _checkAbandoned [Failure instance: Traceback:
<class 'buildbot.slave.commands.AbandonChain'>: 1
  /Library/Python/2.5/site-packages/buildbot/slave/commands.py:158:processEnded
  /Library/Python/2.5/site-packages/buildbot/slave/commands.py:466:finished
  /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/twisted/internet/defer.py:229:callback
  /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/twisted/internet/defer.py:294:_startRunCallbacks
  --- <exception caught here> ---
  /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/twisted/internet/defer.py:307:_runCallbacks
  /Library/Python/2.5/site-packages/buildbot/slave/commands.py:691:_abandonOnFailure
  ]
2008/02/26 00:05 CST [-]  abandoning chain 1
2008/02/26 00:05 CST [-] SlaveBuilder.commandComplete
<buildbot.slave.commands.Git instance at 0x102ab70>
2008/02/26 00:12 CST [-] sending app-level keepalive

The git-fetch command stdio indicated a DNS name resolution problem.
However, doing a git-fetch manually worked. A restart of the slave
appears to have fixed the problem. I'm just wondering if anyone has
experienced similar problems and if so they determined the cause.

Thanks,

David Whittington