perfSONAR User Q&A and Other Discussion

["Jeff W. Boote" <>]

Vedrin Jeliazkov wrote:
> Well, this simple check if the service is listening at the specified port
> would be indeed much better than nothing. Another alternative could be to use
> NAGIOS and/or SmokePing with appropriate plugins. 
>
> On the longer run, I could imagine another perfsonar (monitoring) service,
> which might do something like this:
>
> - check in the LS to see what other services have registered (where, when,
> what type, with what version/capabilities);
> - send a tailored query to each specific service;
> - process the response and confirm it is well undersood and corresponds to the
> service type/version/capabilities;
> - publish a nice web page, showing which services (url, port, type, version,
> capabilities, domain, technical contact) are alive;

I agree that active monitoring of services is possible and would be useful in 
some cases.

Another way to achieve at least part of this given the SOA architecture we have 
designed is simply to see what is in the LS. Registrations have a time-out 
associated with them. Services will need to refresh with the LS or the entry 
will be dropped. So, only 'live' services will be in the LS. (Of course, we are 
not really using the registrations from services and lookup from clients yet so 
this is academic...)

jeff