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From geomacy <>
Subject [GitHub] brooklyn-server issue #443: Adds maxConcurrentChildCommands parameter to Dyn...
Date Fri, 25 Nov 2016 17:45:45 GMT
Github user geomacy commented on the issue:
    Have done some more testing with this, with the blueprint:
    name: test
    location: amazon-eu-central-1
    - type:
            name: first
            name: VM
        cluster.initial.size: 20
        cluster.maxConcurrentChildCommands: 3
    and one issue I noticed was that, once you've deployed the cluster, if you have second
thoughts and decide to stop it when only a few nodes have started, say three, the stop effector
call "goes to the back of the queue", and the remaining seventeen nodes gradually start up,
three at a time, before the stop finally gets its chance to do anything.   Then the nodes
gradually shut down (oddly, two at a time?).
    I think this would be sufficiently annoying for users that we should think about allowing
priority to stop commands?

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