Hi All:
I have 2 questions regarding configuring Linux HA with multiple interfaces and
multiple VIPs.
Let me explain my setup first; I have a two node cluster, "node1" and "node2".
Each of the node has 2 interfaces "eth0" and "eth1". I am using the heartbeat
service to monitor the interfaces and failover the VIPs configured on each
interfaces to the other node.
- My first question is; I configure the HA cluster on both the interfaces (by
specifying both interfaces and VIPs in the haresource file). If one of the
interface goes down, the heartbeat service detects that the interface is down
but doesn't trigger the failover because it can connect to the secondary
machine over the second interface. Is it possible to create a setup where
heartbeat monitors both the interfaces but triggers a failover if ANY of the
interface is down?
- My second question is; In my setup I manage 2 VIPs created on the interface
alias "eth0:0" and "eth1:0" by HA. I am able to configure the VIPs
appropriately and HA configures them on the primary machine. If I shutdown the
primary, both the VIPs are migrated to the secondary machine successfully. Now
I bring down one interface by "ifdown eth1" and later bring it back up "ifup
eth1", the heartbeat service first detects that interface is down and later
detects that it has come up, but it doesn't configure the VIP when the
interface is back up e.g. in this case "eth1:0" on the interface is not
created. I have to manually run the "IPaddr2" command to configure the
resource. Is there a way around this issue?
Thanks in advance
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