Are there any know issues with running the org.apache.ignite.spi.discovery.tcp.ipfinder.kubernetes.TcpDiscoveryKubernetesIpFinder a purely IPv6 environment? I looked here and it mentions there may be issues with clusters becoming detached but does not offer any specifics. Any information would be appreciated, thanks.
I'm not aware of any IPv6 problems per se, so if your network is configured correctly I would expect it to work.
The problem we typically see when IPv6 is enabled is that it's possible to route to the IPv4 address but not the IPv6 address -- which is why setting preferIPv4Stack works.