[ovirt-users] "Cannot acquire bridge address" / Failure in "hosted-engine --deploy" on 4.1.8

[Simone Tiraboschi]

On Tue, Nov 28, 2017 at 1:43 AM, Frank Wall <fw at moov.de> wrote:

> Hi,
>
> when running "hosted-engine --deploy" on a fresh CentOS 7.4 with pre-built
> network configuration (and ovirtmgmt bridge), the following error occurs:
>

Hi Frank,
what happened to you is exactly https://bugzilla.redhat.com/1317125 which
has been closed as wontfix.

The point is that if you manually/directly create a bridge outside vdsm,
this one will not be associated with any logical network know by vdsm (as
you pointed out the networks field in getVdsCapabilities is empty) and so
we cannot match it.
In general we simply recommend to configure bonds and vlans as needed but
let hosted-engine-setup create a management bridge for you via vdsm over
the selected interface (it could be also a bond with a vlan tag).
If you still want to directly create the management bridge by yourself in
advance, but honestly I cannot understand why, you have to properly do it
with vdsm setup host network commands.



>
> 2017-11-27 19:08:12 DEBUG otopi.context context._executeMethod:142 method
> exception
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/site-packages/otopi/context.py", line 132, in
> _executeMethod
>     method['method']()
>   File "/usr/share/ovirt-hosted-engine-setup/scripts/../
> plugins/gr-he-common/network/bridge.py", line 295, in
> _get_hostname_from_bridge_if
>     raise RuntimeError(_('Cannot acquire bridge address'))
> RuntimeError: Cannot acquire bridge address
>
> While checking the source of bridge.py line 295 the root cause is
> interesting:
>
> Running "vdsClient -s $HOSTNAME getVdsCapabilities" works perfectly, all
> NICs
> and bridges are returned, but only "networks" is returned as empty list:
> {}.
> Clearly looks like a bug. How can I resolve this issue?
>
> ovirt-hosted-engine-setup-2.1.4-1.el7.centos.noarch
> vdsm-4.19.40-1.el7.centos.x86_64
>
>
> Regards
> - Frank
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>
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