a question in ipvs sync persistent connection info

[Kingston Wang]

Hi,
 There is a question in ipvs sync connection data from master ipvs to
backup one. The sync thread is running, if you use watch -n1 "ipvsadm
-lcn", you can know that the current persistent connection is synced to
the peer. But if at that time, active ipvs is down, and a persistent
request coming, the standby ipvs would take over and serves as a master
one. But the synced persistent connection table is not enough for this
http request, and this request is scheduled again. That's a big issue:
if we use it to apache server which needs keep session key, it would not
work.
 
 Can anybody know why ipvs does not sync the whole ip_vs_conn info to
the peer? Can we change the codes to support it?
 
 Thanks,
 

BR,

Kingston,