hot-plug realservers

["Tim Wu" <chtimwu@xxxxxxxxxxxxxxxxx>]

Dear All,

        I found a strange problem and I can't sure it is a bug of LVS.
My LVS testbed includes a LVS dispatcher, three web realservers, 
and a client running ab(Apache benchmark).  LVS is setup in nat mode.
Lan bandwith is 100Mbit.

If I add or remove realserver with ipvsadm while ab is sending 
http requests to LVS in very high speed(about 500 req/s),  the LVS 
will stop dispatching any connection until I let it take a rest 
by stoping ab (wait the inactive connection become 0).

Anyone has the same experience on this?