Layer2 mode - advertised node (MAC) going down is not detected. #392
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kind/bug
Categorizes issue or PR as related to a bug.
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Describe the bug
We had the node that was used as the advertised MAC for a service via Layer2 mode be removed from the cluster, and openelb did not notice this and continued to advertise the MAC address of the node for the LoadBalanced Services.
To Reproduce
Remove or pull the NIC of the node that is being advertised for a service in Layer2 mode. Observe that the service is unreachable (or watch
tshark -n arpor some such to see mac still being advertised).Expected behaviour
High Availability should detect this condition and move the advertised MAC to another node.
Output
87 74.760951381 08:c0:eb:b8:e0:ae → 76:5e:48:5d:7c:3b ARP 60 10.80.10.2 is at 08:c0:eb:b8:e3:7e
The node with 08:c0:eb:b8:e3:7e was no longer up or part of the cluster.
Version Info
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