[Buildbot-devel] Buildbot 1.0: The Shimmering Vision

[Dustin J. Mitchell]

On Thu, Aug 14, 2008 at 12:05 PM, Mark Roddy <markroddy at gmail.com> wrote:
> Essentially, I have one build slave with a database instance, and two
> different builds that need the instance.  There are three steps in
> each build that need a lock for the database: Install Schema, Run
> Tests, Drop Schema.  I'd need to lock these steps as a whole, and not
> lock the steps individually as this creates a race condition.  To work
> around this I've been locking the entire build though this is a waste
> as prior to these three steps there's about 15 mins of unit tests for
> each build that could be executed simultaneously.  Note that if there
> is a way to accomplish this already, please let me know.

This is not (to my knowledge) currently possible, but my thoughts
about configuring builds as microthreaded functions make this easier:

def do_build(self):
  lock = self.getLock("foo")
  yield lock.acquire()
  try:
    yield stepa()
    yield stepb()
  finally:
    yield lock.release()

Dustin

-- 
Storage Software Engineer
http://www.zmanda.com