[ClusterLabs] Resources still retains in Primary Node even though its interface went down

pillai bs pillaibsmail at gmail.com
Wed May 3 03:43:11 EDT 2017

Hi Experts!!!

              Am having two node setup for HA (Primary/Secondary) with
separate resources for Home/data/logs/Virtual IP.. As known the Expected
behavior should be , if Primary node went down, secondary has to take
in-charge (meaning initially the VIP will point the primary node, so user
can access home/data/logs from primary node.Once primary node went down,
the VIP/floatingIP will point the secondary node so that the user can
experienced uninterrupted service).
             I'm using dual ring support to avoid split brain. I have two
interfaces (Public & Private).Intention for having private interface is for
Data Sync alone.

I have tested my setup in two different ways:
1. Made primary Interface down (ifdown eth0), as expected VIP and other
resources moved from primary to secondary node.(VIP will not be reachable
from primary node)
2. Made Primary Interface down (Physically unplugged the Ethernet Cable).
The primary node still retain the resources, VIP/FloatingIP was reachable
from primary node.

Is my testing correct?? how come the VIP will be reachable even though eth0
was down. Please advice!!!

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