This Week in OpenNMS: Back Again for the First Time

      Welcome to This Week in OpenNMS!


    Editor’s Note:

    If you’ve been with us for a long time, you may remember a thing we
    did called This Week in OpenNMS. It was pretty popular, but also
    took a lot of time to put together and I fell out of the habit.
    Obviously, it’s been more than a week since the last TWiO, but I’m
    hoping to rectify that. Only time will tell. ;)

    For that reason, this TWiO will be a bit more high-level than they
    will usually be.

    Enjoy!

    – Ben


      Release Plans


    Obviously these dates can change as circumstances change, but here
    are our current plans for releases coming up.


        OpenNMS 17.1.1 (SOON)


    OpenNMS 17.1.1 is due out this week, barring any complications or
    complaints from Bamboo. It will be a pretty small release compared
    to 17.1.0, with fixes to the requisition administration UI, OpenNMS
    Compass compatibility, a user/group editing bug fix, and a few other
    small changes.


        OpenNMS 18 (end of March)


    If you’ve been following development for a while, we’ve been
    planning for OpenNMS 18 to be the first release with a new feature
    called “Minion” (more on that below). For a variety of good reasons
    we are going to release OpenNMS 18 at the end of the month and the
    Minion code will follow in OpenNMS 19.

    Alejandro has been working through a number of issues with the new
    provisioning UI and our ReST APIs, and there are some significant
    changes that need to happen in our current ReST APIs to make them
    first-class citizens (and compatible with how modern browsers make
    and handle requests).

    To that end, we’ve decided to release the current development branch
    early. It will be called 18.0.0 because we needed a version bump to
    indicate the significance of the ReST API changes, but it will not
    yet contain the work needed for Minion support. The timeline for
    that still hasn’t really changed, we’re just introducing an extra
    major release in between, so Minion gets bumped to 19.

    The plan is for 18 to get cleaned up and wrapped up by the end of
    March. If you have any development work you are doing, please make
    sure it’s green in Bamboo and merged back to the develop branch in
    the next few weeks.

    OpenNMS 18 will contain a number of other features in addition to
    the ReST API changes mentioned above:

      * ActiveMQ Embedded in OpenNMS

        There will be an ActiveMQ broker available inside OpenNMS, to be
        used for passing messages. In the long term, the goal will be to
        move all internal events and messaging to ActiveMQ, but in the
        short term this exists to facilitate future Minion development.

      * New Discovery Backend

        A lot of custom discovery code has been replaced with simple
        Apache Camel rules. You should not see any differences in how
        Discovery works, but the codebase is simplified considerably.

      * Measurements ReST API Improvements

        Additional support for filtering and derivatives has been added
        to the measurements ReST API, as well as a few other smaller
        changes.

      * Syslogd Refactor

        The syslog daemon has been refactored to scale better and handle
        even higher rates of traffic.

      * Remote Poller Scan Report

        The scan report is an alternate version of the Remote Poller
        designed to do a single scan of services and give a simple
        report of pass/failure. It’s meant for use in a troubleshooting
        situation where you won’t be running the remote poller
        continuously, but want to check on the availability of services.

      * Business Service Monitor

        The BSM is an OpenNMS correlation project that applies a rules
        engine and state machine technologies to directed graphs
        (network topology and software relationships) for root cause and
        business impact analysis. (more on this below)


        OpenNMS 19 (end of May)


    OpenNMS 19 is currently slated for the end of May, and is primarily
    a target release for the first iteration of the OpenNMS Minion project.


      About Minion


    The Minion project is something we’ve been working on for a couple
    of years now. It is designed to scale OpenNMS horizontally,
    providing data collection, polling, and event forwarding from
    OpenNMS “minions” back to a central OpenNMS server. Unlike the
    Remote Poller, the Minion will be a first-class citizen as far as
    events, collection, and services supported.

    For more details on the plans for Minion and its general
    architecture, see Seth Leger’s presentation to OUCE 2015:

        https://www.youtube.com/watch?v=OVuGtd3gIJo


      About Business Service Monitor


    The goal of the Business Service Monitor is to provide a high-level
    correlation of business rules, and to display them in the topology map.

    In the BSM, you define a Business Service that encompasses a set of
    entities (nodes, interfaces, services, and other Business Services)
    and the relationships among them. The alarm states of the component
    entities are rolled up in a map-reduce fashion to drive a state
    machine. The state of a Business Service is reflected in a type of
    event, and can also be visualized (along with the service hierarchy)
    in the existing OpenNMS topology map.

    For a technical overview of the architecture and design, see the
    wiki page for the BSM

        http://www.opennms.org/wiki/BusinessServiceMonitoring


      Until Next Time…

    That’s it for this week. If you have any questions, comments, or
    concerns, feel free to e-mail me at [email protected]
    <mailto:[email protected]>.

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