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I was testing ceph in a centos 7 VM, just so I could support
someone that wants to use CentOS 7, and I ran into a problem...
What am I doing wrong?
First I tried just without any ipv6 changes, and the eth0 had an
ipv6 address, but it still didn't work. I think it looked the same
but didn't save the output.
Then I disabled IPv6 via sysctls, rebooted, and tried again:
root@centos7-ceph:~ # /usr/bin/ceph-mon -f --cluster ceph --id centos7-ceph --setuser ceph --setgroup ceph
2017-05-06 07:13:34.801245 7feea4cb7600 -1 accepter.accepter.bind unable to bind to [fe80::4c30:18ff:fe6c:7b2b]:6789: (22) Invalid argument
2017-05-06 07:13:34.801278 7feea4cb7600 -1 accepter.accepter.bind was unable to bind. Trying again in 5 seconds
^C
root@centos7-ceph:~ # ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 4e:30:18:6c:7b:2b brd ff:ff:ff:ff:ff:ff
inet 10.3.0.89/16 brd 10.3.255.255 scope global eth0
valid_lft forever preferred_lft forever
root@centos7-ceph:~ # ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 4e:30:18:6c:7b:2b brd ff:ff:ff:ff:ff:ff
root@centos7-ceph:~ # sysctl -a | grep ipv6.*abled
sysctl: reading key "net.ipv6.conf.all.stable_secret"
net.ipv6.conf.all.seg6_enabled = 0
sysctl: reading key "net.ipv6.conf.default.stable_secret"
net.ipv6.conf.default.seg6_enabled = 0
sysctl: reading key "net.ipv6.conf.eth0.stable_secret"
net.ipv6.conf.eth0.seg6_enabled = 0
sysctl: reading key "net.ipv6.conf.lo.stable_secret"
net.ipv6.conf.lo.seg6_enabled = 0
Then I tried disabling ipv6 via the kernel cmdline, and also left
the sysctls the way they were:
root@centos7-ceph:~ # /usr/bin/ceph-mon -f --cluster ceph --id centos7-ceph --setuser ceph --setgroup ceph
2017-05-06 07:17:29.890929 7fc2bec5b600 -1 accepter.accepter.bind unable to create socket: (97) Address family not supported by protocol
2017-05-06 07:17:29.890963 7fc2bec5b600 -1 unable to bind monitor to [fe80::4c30:18ff:fe6c:7b2b]:6789/0
Also I tried config:
ms bind ipv6 = false
Which didn't do anything.
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