Using your slice to run OMF experiments¶
There are two ways of running OMF experiments during your reservation. The first way is to issue OMF commands when logged in the NITOS server and the second way is to install the OMF Experiment Controller locally at your PC and configure it appropriately. We strongly recommend the first option, since every necessary compoment is in place in our server.
1.Running OMF Experiment Controller from the server¶
In this section, we present you the functionality of the omf_ec command and some of its parameters. If you are interested in running a real OMF experiment, please go to Simple OMF Example.
You can run OMF experiments while logged in the NITOS server with your account. Two options of the omf_ec command that might be useful are the: -u xmpp://usr:pwd@my_xmpp.com for mentioning the URL of the XMPP server you are going to use and the –oml_uri tcp:srv:port for mentioning the URL of the OML server you are willing to use. An example of issuing the omf_ec command, while connected in NITOS server,
where we use the XMPP and the OML server installed in the domain nitlab.inf.uth.gr is:
omf_ec -u xmpp://nitlab.inf.uth.gr exec --oml_uri tcp:nitlab.inf.uth.gr:3003 your_experiment.rb
or the following, where we use the OML Server deployed in nitlab3.inf.uth.gr:
omf_ec -u xmpp://nitlab.inf.uth.gr exec --oml_uri tcp:nitlab3.inf.uth.gr:3003 your_experiment.rb
There is one XMPP server deployed in each of the NITOS testbeds. Although, you can use the nitlab.inf.uth.gr for the whole NITOS Facility, even if you are using nodes from nitlab2.inf.uth.gr or nitlab3.inf.uth.gr. In case you want to use another domain as your XMPP server, you should also configure accordingly the yaml file of the OMF RC of each of the involved nodes.
More about the different OML Servers deployed in NITOS, Accessing the measurements gathered from your OMF experiment.