Version 11 (modified by 12 years ago) (diff) | ,
---|
[PageOutline]
Notes from Post-GEC14 testing of GIMI
Step | Status |
Establish test/experiment environment | |
[wiki:JOhrenSandbox/GIMINotes8.1.2012#ObtainsliceofGENIresources,installandconfigureGIMII&Mtools Obtain slice of GENI resources, install and configure GIMI I&M tools | |
[wiki:JOhrenSandbox/GIMINotes8.1.2012#Run and orchestrate GIMI I&M tools and reference/actual experiment | |
[wiki:JOhrenSandbox/GIMINotes8.1.2012#Push I&M measurement results to iRODS archive service | |
[wiki:JOhrenSandbox/GIMINotes8.1.2012#Pull I&M measurement results from iRODS archive service to UW for processing | |
[wiki:JOhrenSandbox/GIMINotes8.1.2012#Observe I&M measurement results on GIMI presentation service | |
[wiki:JOhrenSandbox/GIMINotes8.1.2012#Release resources, and cleanup |
1. Establish test/experiment environment
User Workspace
- Using the GEC14 Tutorial VM
- Inputs:
- GENI certificate
- installed in $HOME/.ssl
- location configured in omni_config
- stripped the passphrase for automation
- SSH key pair
- installed in $HOME/.ssh
- location configured in omni_config
- key added to ssh-agent
- iRODS account
- username configured in $HOME/.irods/.irodsEnv
- password stored using iinit
- GENI certificate
- All credentials configured using credconfig.sh script
- Outputs:
- omni.py ready to use
- i-commands ready to use
- ready to log into nodes in the slice
iRODS server
- iRODS server on emmy8 was down so I set up my own on pc41.emulab.net
OML server
- Set up my own OML server on pc41.emulab.net
- I was not able to get the oml2-server to use the hook script when started as a service (/etc/init.d/oml2-server start) - only when started on the command line:
$ oml2-server --listen=3003 --data-dir=/users/johren/gimi --logfile=/users/johren/oml_server.log -H /users/johren/oml2-server-hook.sh
- Configured hook script to use my iRODS server
2. Obtain slice of GENI resources, install and configure GIMI I&M tools
- Used omni to create the slice and the sliver on ExoSM aggregate
- rspec link here
- Rspec includes an execute service for each node that downloads gimi-postboot.sh from the web server (on pc41.emulab.net) and runs it with the slicename and nodeid parameters
<services> <execute command="wget -q -P /tmp http://pc41.emulab.net/gimi-postboot.sh ;chmod +x /tmp/gimi-postboot.sh;/tmp/gimi-postboot.sh %SLICENAME% NodeB > /tmp/gimi-postboot.log" shell="/bin/sh"/> </services>
3. Run and orchestrate GIMI I&M tools and reference/actual experiment
- Run the tcp_iperf.rb script using the EC on the UW VM
$ omf-5.4 exec --no-cmc -S johGIM1208011452 tcp_iperf.rb -- --source1 johGIM1208011452-NodeA --sink johGIM1208011452-NodeC
4. Push I&M measurement results to iRODS archive service
- This is done by the oml2-server-hook.sh script
- I had to do a lot of modification to this script because it is very tailored to the OML server configuration
- Pulls filename and username from the path of the file so it is very dependent upon the filesystem configuration of the server (e.g. home directories are in /users instead of /home)
- Had to make some changes to the ichmod commands to get it to work with my iRODS server
- The hook script currently expects the usernames to begin with "gimi". I had to modify my script to look specifically for my username. This will not currently work on emmy9 when experimenters use their own credentials
5. Pull I&M measurement results from iRODS archive service to UW/iREEL
- Ran the tutorial_viz.sh command to pull the results from iRODS and run the R script on it to create the images
- The R script is currently failing and, therefore, not producing the graphs:
> mydata1 <- dbGetQuery(con, "select oml_sender_id,begin_interval,size,end_interval from iperf_transfer where oml_sender_id=1") > intervals1 <- mydata1$end_interval - mydata1$begin_interval > throughput1 <- abs(mydata1$size)/intervals1/1024/1024*8 Error in abs(mydata1$size) : Non-numeric argument to mathematical function Execution halted spawn sudo cp johGIM1208011452.png /var/www/ [sudo] password for geniuser: cp: cannot stat `johGIM1208011452.png': No such file or directory
6. Observe I&M measurement results on GIMI presentation service
7. Release resources, and cleanup
Attachments (1)
- GIMIEnvironment.png (46.0 KB) - added by 12 years ago.
Download all attachments as: .zip