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Installation Steps

  • Download opTrend from the Opmantek website.
    Copy the opTrend tarball to the server in question, using scp or sftp or similar. Make a record of where you put the tarball (likely root's home directory).
  • Become root and unpack the tarball:

    Code Block
    # asbecome root
    cd /usr/localsudo sh
    # if the tarball was saved in a different location, adjust the ~following incommand the
    followingcd command/tmp
    tar xzf ~/opTrend-Linux-x86_64-1.04.0.tgz
  • Start the interactive installer and follow its instructions:

    Code Block
    sudo sh
    cd opTrend-1.4.0
    opTrend (1.4.0) Installation script
    This installer will install opTrend into /usr/local/omk.
    To cp install/opCommon.nmis conf/
    cp -r install/trend conf
    cp install/users.dat conf/
    opTrend is now unpacked
    select a different installation location please rerun the 
    installer with the -t option.
  • The installer will interactively guide you through the steps of installing opTrend. Please make sure to read the on-screen prompts carefully.
  • When the installer finishes, opTrend is installed into /usr/local/omk, and the default configuration files are in /usr/local/omk/conf, ready for your initial config adjustments.

    Integrate opTrend with the web server
    become root and run the following commands:

    Code Block# as root # non-debian: cp
  • A detailed log of the installation process is saved as /usr/local/omk/conf/04omk-proxy.conf /etc/httpd/conf.d/ apachectl restart # debian/ubuntu: cp /usr/local/omk/conf/04omk-proxy.conf /etc/apache2/conf.d/ /etc/init.d/apache2 restart

    Note: If this step is not taken, then the opTrend web GUI will only be available on port 8042 and you'll need to adjust your web browser accordingly.

    Adjust NMIS Access list to include opTrend 

    Code Blockcd install.log, and subsequent upgrades or installations of other Opmantek products will add to that logfile.
  • For detailed information about the interactive installer please check the Opmantek Installer page.

Post Installation Steps

  1. The opTrend installer will create cron entries to keep the opTrend database up-to-date but an initial "update" is required to prime the database for the current week. Run the following command to do this: 

    Code Block
perl ./install/optrend_setup
  1. bin/ 
  1. act=

Make the opTrend service daemons start automatically with the system
become root, then run the  following commands:

Code Block# as root cd
  1. update
  2. The wiredTiger storageEngine is suggested for opTrend to improve performance.

  3. The opTrend installer will attempt to "cap" the "seds" collection to limit the database size somewhat (asking first).  This only happens if the wiredTiger storageEngine setting is set because not all versions of Mongo support collection updates that opTrend requires.  The "seds_ev" and "ev_billboard" collections are not capped.  Capping can be done post-install by running act=setup-db

  4. History can be created if your NMIS installation has the data, to do this run the updates for the weeks you have.  I suggest doing this oldest to newest so that the Billboard information can be calculated correctly: 

    Code Block
install cp omkd.init.d /etc/init.d/omkd # non-debian: chkconfig omkd on # debian/ubuntu: update-rc.d omkd defaults
  • Start the opTrend service daemons
    become root, then run the following commands:

    Code Block
    service omkd start 
  • Setup the cron jobs to run data collections, create a file /etc/cron.d/optrend

    Code Block# opTrend "collect" */5 * * * * root sleep 60;
    1. bin/ act=update date="4 weeks ago" force_end_of_week=1 force=1
      /usr/local/omk/bin/ act=update date="3 weeks ago" force_end_of_week=1 force=1
    1. pl act=
    collect; 0 0 * * 0 root
    1. update date="2 weeks ago" force_end_of_week=1 force=1
    1. pl act=update


    Test opTrend
    open up a web browser, and point it to "http://<yourserverip>/omk/opTrend"; you will have to enter your license first, then you will see opTrend main dashboard.
    1.  date="1 week ago" force_end_of_week=1 force=1

    Post Installation Upgrade Steps

    1. New datasets have been introduced that the GUI will not show unless the config is updated, update opConfig.nmis with this setting:

      Code Block
      'optrend_topn_sections' => [ {"Node Health" => [{ 'cpuLoad' =>'cpu' }, { 'MemoryUtil' =>'memory' },{ 'tcpCurrEstab' => 'tcp'},{'hrSystemProcesses' => 'processes'} ]}, {'Interface Trend' => [{ 'ifInUtil' =>'interface' }, { 'ifOutUtil' =>'interface' },{ 'ifInErrors' =>'packets' },{ 'ifOutErrors' =>'packets' },{ 'ifInDiscards' =>'packets' },{ 'ifOutDiscards' =>'packets' }]}],
    2. You may also want to set the control settings to: 'optrend_exceptions_to_make_condition' => 3,