[Samba] CTDB + InfiniBand Public IP Addresses

[Malcolm Cowe]

Hi,


I'm trying to set up a small CTDB cluster running in an IPoIB InfiniBand
network. When I try to start up a cluster with a set of public IP
addresses, the public addresses do not come online. So, I removed the
public address configuration and started a single node up by hand, then
tried to add a public address as follows:


[root at gp-1-0 ctdb]# ctdb ip

Public IPs on node 0

[root at gp-1-0 ctdb]# ctdb ip -Y

:Public IP:Node:ActiveInterface:AvailableInterfaces:ConfiguredInterfaces:

[root at gp-1-0 ctdb]# ctdb addip 192.168.5.151/24 ib0

2014/05/20 06:44:31.202611 [180506]: client/ctdb_client.c:2184 ctdb_control
for takeover_ip failed

2014/05/20 06:44:31.202746 [180506]: Failed to take over IP on node 0

2014/05/20 06:44:31.202762 [180506]: Failed to move ip to node 0

[root at gp-1-0 ctdb]# ctdb ip -Y

:Public IP:Node:ActiveInterface:AvailableInterfaces:ConfiguredInterfaces:

:192.168.5.151:-1:::ib0:

As you can see, the address is listed but the VIP doesn't start. I know I
can create virtual IPs on the ib0 interface, so Im hoping there's something
obvious I'm missing.

Versions are a bit out of date (running in CentOS 6.5):

[root at gp-1-0 ctdb]# rpm -qa ctdb samba

samba-3.6.9-151.el6_4.1.x86_64

ctdb-1.0.114.5-3.el6.x86_64

I've done this heaps of times with Ethernet public addresses but not with
the IB interface. Maybe something in the eventscript?

Pointers, advice welcomed.

Regards,

Malcolm.