We run a ten-node 64-OSD Ceph cluster and use IPv6 where possible.
Today I noticed this error message from an OSD just after I restarted
it (in an attempt to resolve an issue with some "stuck" pgs that
included that OSD):
2013-02-11 09:24:57.232811 osd.35 [ERR] map e768 had wrong cluster addr ([2001:620:0:6::106]:6822/1990 != my [fe80::67d:7bff:fef1:78b%vlan301]:6822/1990)
These two addresses belong to the same interface:
root@h1:~# ip -6 addr list dev vlan301
7: vlan301@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
inet6 2001:620:0:6::106/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::67d:7bff:fef1:78b/64 scope link
valid_lft forever preferred_lft forever
2001:620:... is the global-scope address, and this is how OSDs are
addressed in our ceph.conf. fe80:... is the link-local address that
every IPv6 interface has. Shouldn't these be treated as equivalent?
--
Simon.
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