[ovirt-users] hosted-engine --deploy fails

[Yedidyah Bar David]

----- Original Message -----
> From: "Andreas Mather" <andreas at allaboutapps.at>
> To: users at ovirt.org
> Sent: Wednesday, December 24, 2014 11:29:58 PM
> Subject: Re: [ovirt-users] hosted-engine --deploy fails
> 
> Hi All!
> 
> Just did more research on this and it seems as if the reason was related to
> my interface configuration. Disclaimer upfront: I've a public IP configured
> on this server (since it's a hosted root server), but changed the IP addr
> here to 192.168.0.99
> 
> I started with the output from ´vdsm-tool restore-nets':
> ipv4addr, prefix = addr['address'].split('/')
> ValueError: need more than 1 value to unpack
> 
> So I dumped the addr dictionary:
> {'address': '192.168.0.99',
> 'family': 'inet',
> 'flags': frozenset(['permanent']),
> 'index': 2,
> 'label': 'eth0',
> 'prefixlen': 32,
> 'scope': 'universe'}
> 
> I've no clue why there's no "/32" at the end, but that's what my netmask
> actually is due to the special configuration I got from my hosting provider:
> 
> [root at vhost1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
> DEVICE=eth0
> BOOTPROTO=none
> ONBOOT=yes
> HWADDR=00:52:9F:A8:AA:BB
> IPADDR=192.168.0.99
> NETMASK=255.255.255.255
> SCOPE="peer 192.168.0.1"
> 
> (again, public IPs changed to private one, if that matters. And I skipped the
> IPv6 config above...)
> 
> So what I did next, was to patch the netinfo.py:
> [root at vhost1 vdsm]# diff -u netinfo_orig.py netinfo.py
> --- netinfo_orig.py 2014-12-24 22:16:23.362198715 +0100
> +++ netinfo.py 2014-12-24 22:16:02.567625247 +0100
> @@ -368,7 +368,12 @@
> if addr['family'] == 'inet':
> ipv4addrs.append(addr['address'])
> if 'secondary' not in addr['flags']:
> - ipv4addr, prefix = addr['address'].split('/')
> + """Assume /32 if no prefix was found"""
> + if addr['address'].find('/') == -1:
> + ipv4addr = addr['address']
> + prefix = "32"
> + else:
> + ipv4addr, prefix = addr['address'].split('/')
> ipv4netmask = prefix2netmask(addr['prefixlen'])
> else:
> ipv6addrs.append(addr['address'])
> 
> 
> and recompiled it:
> [root at vhost1 vdsm]# python -m py_compile netinfo.py
> 
> 
> 
> Et voilà:
> vdsm-tool ran fine:
> `hosted-engine --deploy' passed the previous failing stage!

Thanks for great analysis, report and patch!
Would you like to push it to gerrit? See [1] and [2]

Adding Dan in case you do not want to, so that your patch isn't lost...

> 
> Hope this helps to find the root cause....

Not sure what you mean - did you have any other problem after
applying your patch? Seems to me that the root cause is some
code (the part you patched or something earlier) did not expect
a prefix of /32, which is indeed quite rare. Not even certain
how it works - did you also get a default gateway? How can you
access it, if it's not in your subnet?

[1] http://www.ovirt.org/Develop
[2] http://www.ovirt.org/Working_with_oVirt_Gerrit

Best regards,
-- 
Didi