[Buildbot-devel] Unable to utilize 'manhole' module in buildbot

[Kenneth Lareau]

(Resending from different account, since there seems to be a problem
with greylisting...)

Well, it looks like this problem is going to be a real pain, it seems... 
see below...

On Tue, 06 Feb 2007 21:00:28 -0800 Brian Warner 
<warner-buildbot at lothar.com> wrote:

 > > Kenneth Lareau <elessar at numenor.org> writes:
 > >
 >> > > I've been having a few issues keeping everything running 
smoothly.  I do
 >> > > suspect this has something to do with the fact that we have 188 
builders
 > >
 > > Wow! I can't imagine what you've done to the Waterfall display to 
make that
 > > usable  :) .
 > >
 >> > > Software: buildbot 0.7.4
 >> > >           Python 2.4.3
 >> > >           pycrypto 2.0.1
 >> > >           Twisted Conch 0.8.0
 >> > >
 >> > >   From buildbot import manhole
 >> > >   c['manhole'] = manhole.AuthorizedKeysManhole(6561, 
"~/.ssh/authorized_keys")
 >> > >           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/conch/insults/insults.py", 
line 77, in ?
 >> > >             class ITerminalTransport(iinternet.ITransport):
 >> > >           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/python/components.py", 
line 168, in __init__
 >> > >             attrs[k] = interface.fromFunction(v, name, name=k, 
imlevel=1)
 >> > >           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/zope/interface/interface.py", 
line 907, in fromFunction
 >> > >             method.varargs = names[argno]
 >> > >         exceptions.IndexError: tuple index out of range
 > >
 > > That exception makes me think that it is a compatibility issue 
between the
 > > installed versions of Twisted and zope.interface . If I had to 
guess, I'd say
 > > your zope.interface is too old.
 > >
 > > Check the README on that Twisted Conch package and see what version of
 > > zope.interface they recommend. The dependency graph might be 
Twisted-Conch ->
 > > Twisted-Core -> zope.interface . It's also possible that the issue 
is the
 > > other way round: that you have a new zope.interface but an old 
twisted.conch
 > > .
 > >
 > > Let me know if that doesn't do it and we can investigate further.

The README says nothing about which zope.interface to use.  I was unable to
tell what version we were using, though I was pretty sure it was at 
least 3.0.1,
but when I upgraded TwistedCore to 2.5.0 and tried to restart buildbot, 
I got
the following failure:

           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/application/app.py", 
line 218, in getApplication
             application = service.loadApplication(filename, style, 
passphrase)
           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/application/service.py", 
line 341, in loadApplication
             application = sob.loadValueFromFile(filename, 
'application', passphrase)
           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/persisted/sob.py", 
line 215, in loadValueFromFile
             exec fileObj in d, d
           File "buildbot.tac", line 3, in ?
             from buildbot.master import BuildMaster
           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/buildbot/master.py", 
line 28, in ?
             from buildbot.changes.changes import Change, ChangeMaster
           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/buildbot/changes/changes.py", 
line 15, in ?
             from twisted.web import html
           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/web/html.py", 
line 11, in ?
             from twisted.web import resource
           File 
"/eng/os/rhel-3/i386/python/lib/python2.4/site-packages/twisted/web/resource.py", 
line 15, in ?
             class IResource(components.Interface):
         exceptions.AttributeError: 'module' object has no attribute 
'Interface'

I thankfully had saved a copy of the site-packages directory before I 
did the new install,
and reverted the changes.  At this point I'm getting the feeling I'll 
need to do a fully
clean install of everything from the ground-up. *sigh*

The whole reason for wanting the 'manhole' module enabled in the first 
place was because
we have a set of dependant builders that aren't being run any more, and 
we can't track
down any change that would've caused this problem.  In fact, between the 
last successful
run of the builders and the first night where they didn't run, there 
were NO changes to
any of the configuration files, so I'm at a loss as to what happened.

Any suggestions to be made here are gratefully welcome!

Ken


--
Ken Lareau
elessar at numenor.org