How do I "reworker" in buildbot (or, how to fix the missing force button)? - buildbot

Question

Starting with this buildbot master config:
# -*- python -*-
# ex: set filetype=python:
from buildbot.plugins import *
c = BuildmasterConfig = {}
c['workers'] = [worker.Worker("example-worker", "pass")]
c['protocols'] = {'pb': {'port': 9989}}
c['change_source'] = []
c['schedulers'] = []
c['schedulers'].append(schedulers.ForceScheduler(
name="force",
builderNames=["awesomesauce", "runtests"]))
factory = util.BuildFactory()
factory.addStep(steps.ShellCommand(command=['echo', 'hi']))
c['builders'] = []
c['builders'].append(
util.BuilderConfig(name="runtests",
workernames=["example-worker"],
factory=factory))
c['builders'].append(
util.BuilderConfig(name="awesomesauce",
workernames=["example-worker"],
factory=factory))
c['status'] = []
c['title'] = "Cool Beans"
c['titleURL'] = "http://example.com"
c['buildbotURL'] = "http://localhost:8010/"
c['www'] = dict(port=8010,
plugins=dict(waterfall_view={}, console_view={}))
c['db'] = {
'db_url' : "sqlite:///state.sqlite",
}
If I change the ForceScheduler to have the following:
builderNames=['awesomesauce', 'runtests', 'coolbeans']
And then simply copy the builders append block and change the name:
c['builders'].append(
util.BuilderConfig(name="coolbeans",
workernames=["example-worker"],
factory=factory))
Then when I do:
buildbot reconfigure master
It says that it added new builders, however when I go to the builders page it only lists the worker for for my original two builders, and the force button is missing from the builder page. Ruh roh.
Is there a way to fix the worker/builder link without completely restarting my buildbot master?

Answer 1

For the Force button, I'd say you have to also reconfigure the ForceScheduler, which is not part of your description.
For the worker assignment it looks like indeed this is a bug of our reconfiguration algorithm
http://trac.buildbot.net/ticket/3629#ticket
This bug only affects the UI. The builder is still configured with this worker, and should be able to start builds with that worker