[Buildbot] #3093: Multi-master configuration via one config.

[Buildbot trac]

#3093: Multi-master configuration via one config.
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Reporter:  Ben          |      Owner:
    Type:  enhancement  |     Status:  new
Priority:  major        |  Milestone:  0.9.+
 Version:  master       |   Keywords:  multi-master
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 As hinted by @dustin in #3084, it is better indeed to open a new issue
 about that than polluting other ones.

 I'd like to have a central entity that has power over the masters when
 running in multi-master mode (n >= 1) {note the ``=``: it hits everyone}

 If n == 1, that entity could be embedded in the one master.

 I would favorize an (external) entity that would manage the configuration,
 compile it, and send the compiled result to the right masters for self
 configuration. I could imagine that each master could get a different
 portion of the config.

 The main driving factor for that idea is that while the config **is**
 code, once compiled, it is completely frozen. Hence compiling it once for
 all masters would be enough.

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Ticket URL: <http://trac.buildbot.net/ticket/3093>
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