Re: [ovirt-users] Hosted engine deploy: problem with the rDNS of another iface

Well but the fact is that it DOESN'T resolve on bond1, there's no DNS entry anywhere resolving to that IP for vm01.mydomain.tld That's the strange thing, I don't really get from where python's socket.gethostbyaddr() gets those 2 IP addresses :/ The only thing that it comes to my mind is that the domain I'm using (mydomain.tld) doesn't have PTRs properly set (and I cannot fix it without migrating the domain...yeah it's ugly as hell what I have here, I know :( ), maybe it's a corner case that should be handled more specifically? I'll try to add entries for vm01.mydomain.tld in /etc/hosts and see if it fixes the problem 2016-09-14 14:32 GMT+02:00 Simone Tiraboschi <stirabos(a)redhat.com&gt;: > > > On Wed, Sep 14, 2016 at 2:07 PM, Davide Ferrari <davide(a)billymob.com&gt; > wrote: > >> But bond0/192.168.10.225 is the only interface I have (right now) to >> connect to the machine. So, I should create another interface, dedicated to >> management? Right now I'm using bond0 as the source iface for the mgm >> bridge. >> > > No this is absolutely fine; the problem is just that 'vm01.mydomain.tld' > should uniquely resolve there and it should not resolve also on bond1 > otherwise you can hit the issue I mentioned before. > > >> >> 2016-09-14 14:02 GMT+02:00 Simone Tiraboschi <stirabos(a)redhat.com&gt;: >> >>> >>> >>> On Wed, Sep 14, 2016 at 1:53 PM, Davide Ferrari <davide(a)billymob.com&gt; >>> wrote: >>> >>>> Ciao Simone! >>>> >>>> Absolutely, here it is (please not that I've obfuscated domain names >>>> but they are consistent with what I wrote before, the hostnames are exactly >>>> the same I have in my env). If you need the original log, tell me but I >>>> will mail it to you privately. >>>> >>> >>> The issue is here: >>> >>> 2016-09-14 13:47:51 DEBUG otopi.plugins.gr_he_common.network.bridge >>> bridge._get_hostname_from_bridge_if:325 hostname: 'vm01.mydomain.tld', >>> aliaslist: '[]', ipaddrlist: '['192.168.10.225', '10.30.0.1']' >>> >>> You can reproduce it with: >>> python -c 'import socket; print(socket.gethostbyaddr("19 >>> 2.168.10.225"));' >>> >>> 'vm01.mydomain.tld' should resolve just on the interface you selected >>> to create the management bridge on. >>> This is because hosted-engine-setup is creating the management bridge >>> on that interface before starting the engine VM and when when it will call >>> hosts.add on the REST API to add your first host to the engine it can just >>> specify an host address by not an interface name and so host-deploy, >>> triggered by the engine, will recreate the management bridge on the >>> interface where the address we passed resolves on. >>> So we have to avoid any ambiguity here. >>> >>> >>> >>>> >>>> Thanks! >>>> >>>> 2016-09-14 13:37 GMT+02:00 Simone Tiraboschi <stirabos(a)redhat.com&gt;: >>>> >>>>> >>>>> On Wed, Sep 14, 2016 at 1:25 PM, Davide Ferrari <davide(a)billymob.com&gt; >>>>> wrote: >>>>> >>>>>> Hello >>>>>> >>>>>> I've got the same exact problem as in this thread: >>>>>> >>>>>> http://lists.ovirt.org/pipermail/users/2016-July/041111.html >>>>>> >>>>>> (sorry for not answering there but I've just subscribed). The error >>>>>> (for the record) is: >>>>>> >>>>>> Failed to execute stage 'Setup validation': hostname >>>>>> 'vm01.mydomain.tld' doesn't uniquely match the interface 'bond0' selected >>>>>> for the management bridge; it matches also interface with IP >>>>>> set(['10.30.0.1']). Please make sure that the hostname got from the >>>>>> interface for the management network resolves only there. >>>>>> >>>>>> 10.30.0.1 is set on bond1 and is used for the glusterfs network. The >>>>>> python output is: >>>>>> >>>>>> python -c 'import socket; print(socket.gethostbyaddr("10.30.0.1"));' >>>>>> ('glu-ovirt01.storage', [], ['10.30.0.1']) >>>>>> >>>>>> which obviously is completely different from vm01.mydomain.tld. >>>>>> So, I don't really get this error. I've used >>>>>> glu-ovirt01.storage:/engine as the glusterfs entry point for storing the >>>>>> engine image, that's all. >>>>>> >>>>>> Any idea on how to fix the error? >>>>>> >>>>> >>>>> Ciao Davide, >>>>> can you please attach the whole hosted-engine-setup log file? >>>>> >>>>> >>>>>> >>>>>> TIA >>>>>> >>>>>> -- >>>>>> Davide Ferrari >>>>>> Senior Systems Engineer >>>>>> >>>>>> _______________________________________________ >>>>>> Users mailing list >>>>>> Users(a)ovirt.org >>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>> >>>>>> >>>>> >>>> >>>> >>>> -- >>>> Davide Ferrari >>>> Senior Systems Engineer >>>> >>> >>> >> >> >> -- >> Davide Ferrari >> Senior Systems Engineer >> > > -- Davide Ferrari Senior Systems Engineer