perfsonar development work

[Maciej Glowiak <>]

Hi Jeff,

Jeff W. Boote wrote:
> Maciej Glowiak wrote:
> > Szymon Trocha wrote:
> > > Hi all,
> > >
> > > Maciej will be working on LS client API which was requested some time 
> > > ago (including request from AMPS). We want to continue this discussion.
> > > To help him with this work it would be nice if you could think and 
> > > give us some hints how you would like to use LS through this API from 
> > > the point fo view of your services. You can provide us some example 
> > > requests to the LS.
> >
> > Well, just to clarify, I am working on classes to create these 
> > requests. The thing I need is example queries to the LS. I want to put 
> > some of the most useful queries (XQuery) into one or several classes. 
> > Then you'd be able to use these classes to create your requests.
> >
> > You don't need to send XQuery, rather what your applications need to 
> > query LS for.
>
> Sorry, I probably won't be able to provide any more this week due to a 
> crazy travel schedule.
>
> > I remember the discussion with Jeff and Vedrin some time ago, but a 
> > couple of days ago I lost all my e-mail at work (HDD crash) and can't 
> > recall the discussion :( (I think I'll be able to recover some data 
> > from backup copies, but...)
>
> Apple replaced the hard-drive in my lap-top the day before I started 
> traveling so I understand. :)

I thought Apples don't crash! ;-)

> Perhaps the list archive could help?
> https://mail.internet2.edu/wws/arc/perfsonar-dev

Yep. After a few "Internal Server Error" messages I finally browsed 
month by month the archive. I found the e-mail.

It seems we've defined 5 queries:

 1) get the addresses of services registered in the LS;

 2) get the addresses of services registered in the LS and having a
    given type (e.g. utilization MA, Hades MA, etc.);

 3) get the addresses of services, registered in the LS, having a
    given type and providing info for a given data point (e.g. IP
    interface address);

 4) get the full list of data points for a given service;

 5) get the full list of data points for all registered services;

Does somebody have any other idea (for specific needs)?

Maciej