perfSONAR User Q&A and Other Discussion

[Andrew Lake <>]

Hi,

Are you asking because MaDDash seems to be checking for a result more than once a week or because your graphs show more than one result per week? MaDDash is just the messenger, it doesn’t execute any tests it just periodically asks the archives for results. You can control how often it checks independent of how often the test actually runs and having MaDDash query the archive more frequently is probably a good idea so you know if anything goes down more quickly than you would otherwise. 

 If the test seems to be running more often than a week, how much more often? If you look at the JSON where you define the test are you using any slip and.or do you have sliprand set? That can cause some variation.

Thanks,

Andy

On March 5, 2019 at 10:24:06 AM, Pete LG () wrote:

Hi Andrew, I set this up several weeks ago per your recommendation, but I noticed from the graphs that there seem to be more than one check during the week.

Does Maddash strictly follow the schedule you prescribed, or is there more going on.

I'm happy with it, but I'm curious what exactly is going on.

Thanks!

Pete LG

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On Wednesday, February 6, 2019 8:28 AM, Andrew Lake <> wrote:

Hi,

All the docs for defining a mesh, now part of the pSConfig component, can be found under the heading here: http://docs.perfsonar.net/#managing-multiple-hosts-with-psconfig. It goes into quite a bit of depth on concepts as well as references for the syntax.

Examples can be found under /usr/share/doc/perfsonar/psconfig or you can view them online here: https://github.com/perfsonar/psconfig/tree/master/doc

If you want a really large example, you can see ESnet’s pSConfig template that drives ps-dashboard.es.net here: https://github.com/esnet/esnet-perfsonar-mesh/blob/master/psconfig/esnet-psconfig.json

For running a test once a week, update your psconfig templates “schedules” section with something like the following:

"schedules" : {

      "schedule_once_a_week" : {

         "repeat" : "P1W",

         "slip" : "PT12H",

         "sliprand" : true

      }

}

The “repeat" says you want it to run every week, the “slip” gives it 12 hours of wiggle room if it cannot get a slot exactly 1 week from the previous run, and “sliprand" has it randomly choose a slot in the 12 hour range so everything is not piled at the beginning of the interval. The 12H is arbitrary and probably a bit high, but its good to build in some wiggle room, especially if you have a lot of tests. 

Thanks,

Andy

On February 5, 2019 at 9:14:09 PM, Pete LG () wrote:

I have a request to add a maddash/mesh grid for 'throughput' testing that is only run once a week at a certain time. 

Does anyone know the best way to go about this.  I suggested that we cron off a test and just get an email once a week with iperf results, but they asked for it in maddash form.

Any ideas or suggestions are most welcome.

Also, is there any work being done on the newer docs for maddash/mesh?  From what I can tell, most of the examples are still in yaml, and all the good examples show bwctl versions of tests.  If anyone knows of example out there, I'd love to view them.

Thanks,

Pete

Pete LG

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