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Here is a scenario that is presenting inconsistent results:
Both directors started and running normally handling VIP connections.
Users have been working in webapps but they are idle for a while and
connections have gone past persistent time.
ipvsadm -l on both directors shows no connections. (this may not be
relevant)
on BACKUP:
service keepalived stop
shutdown -h now
... do some work ...
power on and boot
During the shutdown or after the BACKUP has rebooted:
User clicks icon in their webapp and nothing happens, it times out. All
clicks to VIP time out.
ipvsadm -l on MASTER shows 1 InActConn on 1 RS # I always see this one
connection in InActConn
ipvsadm -l on BACKUP shows either nothing or no connects
I have tried on MASTER, issuing the ICMP ECHO on VIP to router. No luck.
REMEDY: on MASTER you must restart keepalived in order for users to
regain VIP connections.
This happens nearly all of the time. Only a couple times the users do
not lose VIP connections.
I have tested this several times and the behavior is the same everytime
when the problem exhibits.
Gerry
FYI: My notify script no longer does anything with the default gateway.
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