As per our discussion on slack, there should be mostly no situations where IPv6-only works but IPv6 does not. But for some reason, I am able to repro this consistently on my vagrant box. When I init the cluster with IPv6 option, it goes thru fine. But when I try it with IPv6-only option, it does not work. Spinner comes up and lands in the same setup page again. Once I land in this state, I cannot init the cluster with any other options. Have to reinstall the server to proceed.
Screen recording: https://drive.google.com/file/d/184pcQfu0yX2ypKmybhFk90rAFJi1F3Ig/view
Attaching logs from both IPv6 and IPv6-only trials
Please note that this is on my vagrant box. So something might be up with the settings. Here is the ifconfig on that box:
|For Gerrit Dashboard: MB-47994|
|159920,9||MB-47994: add IPv4/IPv6-only errors/warnings||cheshire-cat||ns_server||Status: MERGED||+2||+1|
|160009,1||Merge remote-tracking branch 'couchbase/cheshire-cat'||master||ns_server||Status: MERGED||+2||+1|