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Hi,
On Fri, 19 Nov 2004, cheaney Chen wrote:
Currently I am trying to design how to add some load migration mechanism
on Real server. That is, transfer a connection from real server A to
real server B.
I hope this change could make LVS work likes a distributed
content-aware architecture.
So the first question i met is : when a connection is moved between
real servers, the director connection table would be changed at the
same time.
Yes, it is do-able, but you need to design a protocol to make sure that
the director, A and B interact correctly, so that the socket endpoint can
be migrated from A to B and the director change the connection table at
the same time.
You may have a look at TCP handoff protocol, but in TCP handoff solution
usually the director is the central one to make content-aware scheduling.
It is slightly different from your distributed content-aware architecture.
Would anyone give me some idea of how to change the table from real server?
Has some body already worked on it ?
Li Wang told me that he wants to make socket endpoint can migrate among
hosts indefinitely. I don't know if he has made a reliable solution. You
may have a look at his page http://dragon.linux-vs.org/~dragonfly/
Regards,
Wensong
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