I have a master server and a backup server that share a floating IP use keepalived for failover. I haven't explicitly defined any health checks, so I assume that the backup server grabs the floating IP and transitions to master status whenever it hasn't received any VRRP advert packets from the master service for some period of time.
We appear to have intermittent network connectivity issues between the two servers, so the backup often makes superfluous transitions to master. I would like to adjust the timeout for advert packets so the backup is less sensitive to network blips. From the documentation (http://www.keepalived.org/pdf/UserGuide.pdf), we have:
advert_int, but that looks like it just changes the broadcast frequency, and
delay_loop, which specifies "the interval between checks", but I'm not sure whether it applies to advert packets or just health checks.
Is what I'm trying to do possible? If so, which configuration option do I use?