[users at bb.net] SQLAlchemy and SQLAlchemy-Migrate versions?

Pierre Tardy tardyp at gmail.com
Mon Aug 8 19:10:22 UTC 2016


I think it is indeed better to just use virtualenv in order to be safe.
The error you are posting means that there is a corruption somehow on the
python environment on your docker image maybe due to those force installs.
I would start from scratch. Do you use a Dockerfile you can share?

Le lun. 8 août 2016 20:38, Barta, Hank <hank.barta at sandc.com> a écrit :

> Hi Pierre,
> Thanks for the quick reply.
>
> We're running Buildbot in a Docker container. Will the --force-reinstall
> lead to an incoherent state for Buildbot? I'm not really concerned about
> other apps because Buildbot is the only thing we plan to run in the
> container.
>
> Will Virtualenv solve the seeming version conflict between SQLAlchemy and
> SQLAlchemy-Migrate versions (and what Buildbot needs?)
>
> I'm far from a Python guru so I'm not sure how to find what versions of
> these two packages will play nice with each other and support the needs of
> Buildbot other than trial and error. That seems like a pretty tedious
> adventure. ;)
>
> Right now I'm working in a 16.04 LTS based container so I can use current
> versions of these packages. I did not have this conflict with the older
> stuff ( 0.8.8 on Ubuntu 14.04) but it did not send email notification
> either.
>
> Thanks,
> hank
>
> From: Pierre Tardy [mailto:tardyp at gmail.com]
> Sent: Monday, August 08, 2016 1:07 PM
> To: Barta, Hank <hank.barta at sandc.com>; users (users at buildbot.net) <
> users at buildbot.net>
> Subject: Re: [users at bb.net] SQLAlchemy and SQLAlchemy-Migrate versions?
>
> Hi Hank,
>
> It is highly recommended to use virtualenv to install buildbot.
> Messing up with distro python packages with such options as
> --force-reinstall will lead to incoherent state and maybe instability of
> other distro programs.
>
> http://trac.buildbot.net/wiki/RunningBuildbotWithVirtualEnv
>
>
>
>
> Le lun. 8 août 2016 à 19:06, Barta, Hank <hank.barta at sandc.com> a écrit :
> OS: Ubuntu 16.04 LTS
> Python 2.7.12
> Buildbot version: 0.8.12
> Twisted version: 16.0.0
>
> I'm confused. The manual at
> http://docs.buildbot.net/current/manual/installation.html#requirements
> (Says "Buildbot 0.8.12 documentation" at the top of the page) states:
>
> "Buildbot requires SQLAlchemy 0.6.0 or higher. SQLAlchemy allows Buildbot
> to build database schemas and queries for a wide variety of database
> systems."
>
> I have the default package for Ubuntu 16.04 installed:
> "ii  python-sqlalchemy          1.0.11+ds1-1ubuntu2             all
>   SQL toolkit and Object Relational Mapper for Python"
> (Looks like 1.0.11 to me.)
>
> A bit further on the same page I see:
> "Buildbot requires one of the following SQLAlchemy-Migrate versions:
> 0.7.1, 0.7.2 and 0.9. SQLAlchemy-Migrate-0.9 is required for compatibility
> with SQLAlchemy versions 0.8 and above. Buildbot uses SQLAlchemy-Migrate to
> manage schema upgrades from version to version."
>
> I install 0.9 using:
> "pip install -I sqlalchemy-migrate==0.9 --force-reinstall"
>
> When I run Buildbot it starts up but when it tries to send email, it gets
> an error:
> 2016-08-08 16:50:29+0000 [-] Exception caught notifying
> <buildbot.status.mail.MailNotifier object at 0x7f9aa740e390> of
> buildFinished event
> 2016-08-08 16:50:29+0000 [-] Unhandled Error
>         Traceback (most recent call last):
>           File
> "/usr/lib/python2.7/dist-packages/buildbot/status/build.py", line 320, in
> buildFinished
>             w.callback(self)
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 393, in
> callback
>             self._startRunCallbacks(result)
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 501, in
> _startRunCallbacks
>             self._runCallbacks()
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 588, in
> _runCallbacks
>             current.result = callback(current.result, *args, **kw)
>         --- <exception caught here> ---
>           File
> "/usr/lib/python2.7/dist-packages/buildbot/status/builder.py", line 597, in
> _buildFinished
>             w.buildFinished(name, s, results)
>           File "/usr/lib/python2.7/dist-packages/buildbot/status/mail.py",
> line 537, in buildFinished
>             return self.buildMessage(name, [build], results)
>           File "/usr/lib/python2.7/dist-packages/buildbot/status/mail.py",
> line 735, in buildMessage
>             build=build, results=build.results)
>           File "/usr/lib/python2.7/dist-packages/buildbot/status/mail.py",
> line 716, in buildMessageDict
>             self.master_status)
>           File "/var/lib/devops/buildbot/master/master.cfg", line 143, in
> messageFormatter
>             result = util.Results[results]
>           File "/usr/lib/python2.7/dist-packages/buildbot/plugins/db.py",
> line 238, in __getattr__
>             raise AttributeError(str(err))
>         exceptions.AttributeError: Requirements are not satisfied for
> buildbot.util:Results: (sqlalchemy-migrate 0.9
> (/usr/local/lib/python2.7/dist-packages),
> Requirement.parse('sqlalchemy-migrate==0.7.2'))
>
> If I try sqlalchemy-migrate==0.7.2 the master errors on startup with:
> 2016-08-08 16:46:43+0000 [-] while starting BuildMaster
>         Traceback (most recent call last):
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 501, in
> _startRunCallbacks
>             self._runCallbacks()
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 588, in
> _runCallbacks
>             current.result = callback(current.result, *args, **kw)
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1184, in
> gotResult
>             _inlineCallbacks(r, g, deferred)
>           File
> "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1128, in
> _inlineCallbacks
>             result = g.send(result)
>         --- <exception caught here> ---
>           File "/usr/lib/python2.7/dist-packages/buildbot/master.py", line
> 206, in startService
>             yield self.db.setup()
>           File
> "/usr/lib/python2.7/dist-packages/buildbot/db/connector.py", line 101, in
> setup
>             basedir=self.basedir)
>           File
> "/usr/lib/python2.7/dist-packages/buildbot/db/enginestrategy.py", line 249,
> in create_engine
>             return sa.create_engine(*args, **kwargs)
>           File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/__init__.py",
> line 386, in create_engine
>             return strategy.create(*args, **kwargs)
>           File
> "/usr/lib/python2.7/dist-packages/buildbot/db/enginestrategy.py", line 203,
> in create
>             self.check_sqlalchemy_version()
>           File
> "/usr/lib/python2.7/dist-packages/buildbot/db/enginestrategy.py", line 198,
> in check_sqlalchemy_version
>             "SQLAlchemy-Migrate version %d.%d.%d" % (version, mvt[0],
> mvt[1], mvt[2]))
>         exceptions.RuntimeError: SQLAlchemy version 1.0.14 is not
> supported by SQLAlchemy-Migrate version 0.7.2
>
> (Hmmm... package name is 1.0.11 and module identifies itself as 1.0.14 ...)
>
> What versions of these modules should I be running?
>
> Thanks,
> hank
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