[lvs-users] cannot start master/backup daemon Centos 7

Phillip Moore pdm at pobox.com
Tue Jun 26 17:01:23 BST 2018


We're trying to get IPVS working on Centos7 and running into something I
didn't see on earlier versions. IPVS is working otherwise. It is able to
load balance to backends and such but I cannot make the master/backup
daemons start.

I don't really have a lot to go on really and looking for suggested avenues
of investigation. I did try deleting the ipv6 address off this vlan
interface but it didn't help. (I read syncing only works with ipv4).

# ipvsadm --start-daemon master --mcast-interface vlan1101 --syncid 1
No such device or address

# ip addr show dev vlan1101
9: vlan1101 at bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue
state UP qlen 1000
    link/ether 00:0a:f7:bd:c7:04 brd ff:ff:ff:ff:ff:ff
    inet brd scope global vlan1101
       valid_lft forever preferred_lft forever
    inet6 fe80::20a:f7ff:febd:c704/64 scope link
       valid_lft forever preferred_lft forever

# cat /etc/redhat-release
CentOS Linux release 7.4.1708 (Core)

# uname --r

ipvsadm v1.27 2008/5/15 (compiled with popt and IPVS v1.2.1)

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