Ole Tange writes: > I have been thinking along the same lines, but have been unable to > find an easy way of doing that in practice.
While hard to solve in general, some of this is quite easy if you can make a few assumptions. Most server or VM farms can be scaled up or down based on overall load, so I think these would be prime candidates for this "servers come and go" scenario -- and they all have in-band and sometimes out-of-band monitoring that you can tap into in various ways. […] > All in all doable, but it does not seem trivially simple. […] Just make it the responsibility of the user that each server in the list given to parallel is actually reachable, don't second-guess the user. That list may actually be something that the user just gets from somewhere else, so you should perhaps be flexible with the expected format. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Wavetables for the Terratec KOMPLEXER: http://Synth.Stromeko.net/Downloads.html#KomplexerWaves