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On 2/3/12 4:54 PM, krishna prasad wrote:
> Assuming that my understanding is correct, how complex or big to have a
> feature to support moving connections of failed real server to other real
> server?
As LVS is all layer-4, you're not going to find this functionality - LVS
doesn't retain any session/L7 information to move the connection from
one system to another if a real server fails. Since the L7 session
information is highly application specific, LVS would not be the
appropriate place for this type of functionality anyway. 99% of the time
restarting the connection on a new real server is enough, particularly
when most of the applications of LVS are web servers where the typical
TCP connection is short lived and the web/app server on the backend has
some intelligence to deal with failed transactions and retries.
What is your environment/application? Do you have some magic between
real servers to support the transition of transactions from one server
to another?
David
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