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> > I want to use virtual server functionality to allow switching over
> > from one pool of server processes to another without an interruption
> > in service to clients.
> In general this can't be done - you loose the connection and have to
> start again. It's on the todo list.
? I must read that differently to you :-) ?
current realservers : A,B,C
servers to swap into the system instead D,E,F
* Add servers D,E,F into the system all with fairly high weights (perhaps
ramping the weights up slowly so as not to hit them too hard:-)
* Change the weights of servers A,B,C to 0.
* All new traffic should now go to D,E,F
* When the number of connections through A,B,C reaches 0, remove them from
the service. This can take time I know but...
Has the required effect.
Michael.
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