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Re: Dynamically changing remote servers list

From: Achim Gratz
Subject: Re: Dynamically changing remote servers list
Date: Sat, 16 Aug 2014 11:51:28 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.91 (gnu/linux)

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

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