OMF Demonstration for GEC4 (March 09)

• Updated overview illustration of the demo:

Fig 1. Demo Setting

Step 1: Install new Grid Service.

• Update the current Grid Services for the outdoor testbed with the GS package attached below

• All the services configuration should be the same as before for: cmc, frisbee, inventory, oml2Server, pxe

• We now have a new service called 'result' (which allows user to access experiment measurement databases without login to the server hosting that database).

• The 'result' service needs to be activated on the same server that runs the 'oml2Server' service. Indeed, it will look for the databases that OMLv2 server has created on the disk of that machine.

• The 'result' service needs 'sqlite3' and 'libsqlite3-ruby1.8' to be installed on that same server as well ('apt-get install sqlite3 libsqlite3-ruby1.8').

• To configure the 'result' service: configuration file should be '/etc/gridservices2/available/result.yaml.winlab'. This file does not exist in the package at the moment, but there is a 'result.yaml.nicta' which you could use as a template. In fact, you should pretty much be able to use it as is.

• To active the 'result' service: as usual, create symlink '/etc/gridservices2/enabled/result.yaml' pointing to '/etc/gridservices2/available/result.yaml.winlab'

• To test the 'result' service: assuming the server name is 'oml' then use 'wget -O - ​http://oml:5022/result' to get a list of available commands, then call one of these commands with a valid experiment ID.

Step 2: Install new Node Handler.

• Update the current Node Handler for the outdoor console with the NH package attached below

• To configure NH: in '/etc/nodehandler4' create a symlink named 'nodehandler.yaml' to nodehandler.yaml.winlab'

• If necessary, modify nodehandler.yaml.winlab as you would do for other consoles at winlab.

• Nothing special (compared to a normal NH upgrade on other winlab testbed) should be done here. By default with 'nodehandler.yaml.winlab, config file, the NH should use Multicast to communicate with the nodes, which is exactly what we want for this demo

• To be installed on the Node: Node Agent, OML2 Client, OTG2, Libsigar

• To be installed on the servers: Grid Service2, OML2 Server