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Re: [Vrs-development] thoughts

From: Open Source
Subject: Re: [Vrs-development] thoughts
Date: Tue, 26 Mar 2002 18:20:44 -0800 (PST)

> > a) They can be used to determine whether the LDS
> is
> > still alive. This allows the cluster administrator
> to
> > have a GUI screen that provides information to the
> end
> > user providing information on the nodes creating
> the
> > VRS.
> True.
> But if we're using a distributed middleware to
> support
> the VRS, then that middleware does all this for you
> - it's
> central to it's operation - certainly with
> Goldwater.

The idea i had was that the mobile agent to be a
plugin module to any part of VRS including the
middleware.  The mobile agent uses a published API of
the middleware to provide a range of services.

> > b) Provide performance statistics
> Again the middleware should do this, as it's the
> middleware that controls the routing of messages
> between
> LDS's, and its a function of the application not a
> product of it.
> Besides, the agents aren't supposed to be able to
> access the physical machine.

If we the use the above approach, the mobile agent
will not be accessing the physical machine but the
sanbox within which the VRS is running. 
The usage of the mobile agent can be further extended
to handle aysnc control messages used within the

Does this make sense?


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