Prerequisite

This sample experiment requires sandbox 7 (sb7.orbit-lab.org) and the two nodes (node1-1 & node1-2).

The tutorial experiment

This experiment is given in the attached script wimax-tutorial2.rb​. Download this file to your home directory.

To run this experiment:

1. ssh into sandbox 7

   ssh sb7.orbit-lab.org
   

2. Image node1-1 & node1-2 with wimax.ndz (this should be in the repository)

   omf-5.2 load [1,1..2] wimax.ndz
   

The output of the imaging command should look similar to the following:

nilanjan@console.sb7:~$ omf-5.2 load [1,1..2] wimax.ndz
Imaging nodes: '[1,1..2]' with image 'wimax.ndz'
(Domain:  default from hostname)
(Timeout:  800 sec.)
 INFO NodeHandler: init OMF Experiment Controller 5.2.408
 INFO NodeHandler: init Experiment ID: sb7.orbit-lab.org_2011_09_14_15_07_41
 INFO NodeHandler: Web interface available at: http://10.17.0.10:4000
 INFO Experiment: load system:exp:stdlib
 INFO property.resetDelay: value = 70 (Fixnum)
 INFO property.resetTries: value = 1 (Fixnum)
 INFO Experiment: load system:exp:imageNode
 INFO property.nodes: value = [1, 1..2] (Array)
 INFO property.image: value = "wimax.ndz" (String)
 INFO property.domain: value = nil (NilClass)
 INFO property.outpath: value = "/tmp" (String)
 INFO property.timeout: value = 800 (Fixnum)
 INFO stdlib: Waiting for nodes (Up/Down/Total): 0/2/2 - (still down: n_1_1,n_1_2)
 INFO stdlib: Waiting for nodes (Up/Down/Total): 0/2/2 - (still down: n_1_1,n_1_2)
 INFO stdlib: Waiting for nodes (Up/Down/Total): 0/2/2 - (still down: n_1_1,n_1_2)
 INFO stdlib: Waiting for nodes (Up/Down/Total): 0/2/2 - (still down: n_1_1,n_1_2)
 INFO whenAll: *: 'status[@value='UP']' fires
 INFO exp: Progress(0/0/2): 10/10/10 min(n_1_1)/avg/max (40) - Timeout: 750 sec.
 INFO exp: Progress(0/0/2): 40/40/40 min(n_1_1)/avg/max (40) - Timeout: 740 sec.
 INFO exp: Progress(0/0/2): 60/60/60 min(n_1_1)/avg/max (40) - Timeout: 730 sec.
 INFO exp: Progress(0/0/2): 70/75/80 min(n_1_1)/avg/max (40) - Timeout: 720 sec.
 INFO exp: Progress(0/0/2): 90/90/90 min(n_1_1)/avg/max (40) - Timeout: 710 sec.
 INFO exp: Progress(2/0/2): 100/100/100 min()/avg/max (40) - Timeout: 700 sec.
 INFO exp:  -----------------------------
 INFO exp:  Imaging Process Done
 INFO exp:  - 2 node(s) successfully imaged - See the topology file: '/tmp/sb7.orbit-lab.org_2011_09_14_15_07_41_topo_active.rb'
 INFO exp:  -----------------------------
 INFO Experiment: DONE!
 INFO NodeHandler: Shutting down experiment, please wait...
 INFO NodeHandler: Shutdown flag is set - Turning Off the resources
 INFO run: Experiment sb7.orbit-lab.org_2011_09_14_15_07_41 finished after 1:41

3. Once the imaging process is complete, we need to turn the nodes on

   omf-5.2 tell on [1,1..2]
   

Use the following command to query the status of the node to see is they are on

omf-5.2 stat

nilanjan@console.sb7:~$ omf-5.2 stat
 INFO NodeHandler: init OMF Experiment Controller 5.2.408
-----------------------------------------------
 INFO Topology: Loading topology 'system:topo:all'.
 Testbed : sb7.orbit-lab.org
 Node n_1_1 - State: POWERON
 Node n_1_2 - State: POWERON
-----------------------------------------------

4. Run the experiment script (from above)

   omf-5.2 exec wimax-tutorial2.ndz
   

The output of the experiment script should be similar to the following:

nilanjan@console.sb7:~$ omf-5.2 exec wimax-tutorial2.rb
 INFO NodeHandler: init OMF Experiment Controller 5.2.408
 INFO NodeHandler: init Experiment ID: sb7.orbit-lab.org_2011_09_14_10_58_24
 INFO NodeHandler: Web interface available at: http://10.17.0.10:4000
 INFO Experiment: load system:exp:stdlib
 INFO property.resetDelay: value = 70 (Fixnum)
 INFO property.resetTries: value = 1 (Fixnum)
 INFO Experiment: load wimax-tutorial2.rb
 INFO whenAll: *: 'apps/app/status/@value' fires
 INFO exp: Give machines some time to warm up
 INFO exp: Request from Experiment Script: Wait for 10s....
 INFO exp: Collect measurements for 100 seconds
 INFO exp: Request from Experiment Script: Wait for 100s....
 INFO exp: Finish it.
 INFO Experiment: DONE!
 INFO NodeHandler: Shutting down experiment, please wait...