[ovirt-users] hosted engine setup on second host fails
Yedidyah Bar David
didi at redhat.com
Wed Sep 24 01:59:26 EDT 2014
----- Original Message -----
> From: "Yedidyah Bar David" <didi at redhat.com>
> To: "Itamar Heim" <iheim at redhat.com>
> Cc: "Stefan Wendler" <stefan.wendler at tngtech.com>, users at ovirt.org
> Sent: Wednesday, September 24, 2014 8:40:58 AM
> Subject: Re: [ovirt-users] hosted engine setup on second host fails
>
> ----- Original Message -----
> > From: "Itamar Heim" <iheim at redhat.com>
> > To: "Stefan Wendler" <stefan.wendler at tngtech.com>
> > Cc: "Yedidyah Bar David" <ybardavi at redhat.com>, users at ovirt.org
> > Sent: Tuesday, September 23, 2014 7:07:12 PM
> > Subject: Re: [ovirt-users] hosted engine setup on second host fails
> >
> >
> > On Sep 23, 2014 7:03 PM, Stefan Wendler <stefan.wendler at tngtech.com> wrote:
> > >
> > > On 09/23/2014 17:01, Itamar Heim wrote:
> > > > On 09/23/2014 05:17 PM, Stefan Wendler wrote:
> > > >> On 09/22/2014 10:52, Stefan Wendler wrote:
> > > >>> On 09/19/2014 15:58, Itamar Heim wrote:
> > > >>>> On 09/19/2014 03:32 PM, Stefan Wendler wrote:
> > > >>>>> Hi there.
> > > >>>>>
> > > >>>>> I'm trying to install a hosted-engine on our second node (fist
> > > >>>>> engine
> > > >>>>> runs on node1).
> > > >>>>>
> > > >>>>> But I always get the message:
> > > >>>>>
> > > >>>>> [ ERROR ] Cannot automatically add the host to the Default cluster:
> > > >>>>> Cannot add Host. Host with the same address already exists.
> > > >>>>>
> > > >>>>> I'm not entirely sure what I have to do when this message comes, so
> > > >>>>> I
> > > >>>>> just press ENTER:
> > > >>>>>
> > > >>>>> #######
> > > >>>>> To continue make a selection from the options below:
> > > >>>>> (1) Continue setup - engine installation is complete
> > > >>>>> (2) Power off and restart the VM
> > > >>>>> (3) Abort setup
> > > >>>>>
> > > >>>>> (1, 2, 3)[1]:
> > > >>>>> ########
> > > >>>>>
> > > >>>>> Is there any other interaction required prior to selecting "1"?
> > > >>>>>
> > > >>>>> In the Web Gui I get the following message:
> > > >>>>>
> > > >>>>> X Adding new Host hosted_engine_2 to Cluster Default
> > > >>>>>
> > > >>>>> Here is the console output:
> > > >>>>>
> > > >>>>> # hosted-engine --deploy
> > > >>>>> [ INFO ] Stage: Initializing
> > > >>>>> Continuing will configure this host for serving as
> > > >>>>> hypervisor
> > > >>>>> and create a VM where you have to install oVirt Engine afterwards.
> > > >>>>> Are you sure you want to continue? (Yes, No)[Yes]:
> > > >>>>> [ INFO ] Generating a temporary VNC password.
> > > >>>>> [ INFO ] Stage: Environment setup
> > > >>>>> Configuration files: []
> > > >>>>> Log file:
> > > >>>>> /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20140919141012-k2lag6.log
> > > >>>>>
> > > >>>>>
> > > >>>>> Version: otopi-1.2.3 (otopi-1.2.3-1.el6)
> > > >>>>> [ INFO ] Hardware supports virtualization
> > > >>>>> [ INFO ] Bridge ovirtmgmt already created
> > > >>>>> [ INFO ] Stage: Environment packages setup
> > > >>>>> [ INFO ] Stage: Programs detection
> > > >>>>> [ INFO ] Stage: Environment setup
> > > >>>>> [ INFO ] Stage: Environment customization
> > > >>>>>
> > > >>>>> --== STORAGE CONFIGURATION ==--
> > > >>>>>
> > > >>>>> During customization use CTRL-D to abort.
> > > >>>>> Please specify the storage you would like to use (nfs3,
> > > >>>>> nfs4)[nfs3]:
> > > >>>>> Please specify the full shared storage connection path
> > > >>>>> to use
> > > >>>>> (example: host:/path): <some address>:/volume1
> > > >>>>> The specified storage location already contains a data
> > > >>>>> domain.
> > > >>>>> Is this an additional host setup (Yes, No)[Yes]?
> > > >>>>> [ INFO ] Installing on additional host
> > > >>>>> Please specify the Host ID [Must be integer, default:
> > > >>>>> 2]:
> > > >>>>> The Host ID is already known. Is this a re-deployment
> > > >>>>> on an
> > > >>>>> additional host that was previously set up (Yes, No)[Yes]?
>
> I admit I never tried that. Not sure how exactly it's supposed to work.
A bit more details:
Normally, a host is registered only in the engine's database. A hosted
engine is additionally registered in a special hosted-engine metadata
file managed by the ha daemon [1]. The question above appears if the host id
is found in this metadata file. It seems we never check if it's already
in the engine database - the assumption is that if an existing host is
re-purposed as a hosted-engine, it should first be "uninstalled" - at least
not be in use (no VMs) and removed from its cluster/dc/the engine.
[1] http://www.ovirt.org/images/d/d5/Fosdem-hosted-engine.pdf pages 17-18
>
> > > >>>>>
> > > >>>>> --== SYSTEM CONFIGURATION ==--
> > > >>>>>
> > > >>>>> [WARNING] A configuration file must be supplied to deploy Hosted
> > > >>>>> Engine
> > > >>>>> on an additional host.
> > > >>>>> The answer file may be fetched from the first host
> > > >>>>> using scp.
> > > >>>>> If you do not want to download it automatically you can
> > > >>>>> abort
> > > >>>>> the setup answering no to the following question.
> > > >>>>> Do you want to scp the answer file from the first host?
> > > >>>>> (Yes,
> > > >>>>> No)[Yes]:
> > > >>>>> Please provide the FQDN or IP of the first host:
> > > >>>>> <node1.domain>
> > > >>>>> Enter 'root' user password for host <node1.domain>:
> > > >>>>> [ INFO ] Answer file successfully downloaded
> > > >>>>>
> > > >>>>> --== NETWORK CONFIGURATION ==--
> > > >>>>>
> > > >>>>> The following CPU types are supported by this host:
> > > >>>>> - model_Westmere: Intel Westmere Family
> > > >>>>> - model_Nehalem: Intel Nehalem Family
> > > >>>>> - model_Penryn: Intel Penryn Family
> > > >>>>> - model_Conroe: Intel Conroe Family
> > > >>>>>
> > > >>>>> --== HOSTED ENGINE CONFIGURATION ==--
> > > >>>>>
> > > >>>>> Enter the name which will be used to identify this host
> > > >>>>> inside
> > > >>>>> the Administrator Portal [hosted_engine_2]:
> > > >>>>> Enter 'admin at internal' user password that will be used
> > > >>>>> for
> > > >>>>> accessing the Administrator Portal:
> > > >>>>> Confirm 'admin at internal' user password:
> > > >>>>> [ INFO ] Stage: Setup validation
> > > >>>>>
> > > >>>>> --== CONFIGURATION PREVIEW ==--
> > > >>>>>
> > > >>>>> Engine FQDN : engine.domain
> > > >>>>> Bridge name : ovirtmgmt
> > > >>>>> SSH daemon port : 22
> > > >>>>> Gateway address : <some address>
> > > >>>>> Host name for web application : hosted_engine_2
> > > >>>>> Host ID : 2
> > > >>>>> Image size GB : 25
> > > >>>>> Storage connection : <some
> > > >>>>> address>:/volume1
> > > >>>>> Console type : vnc
> > > >>>>> Memory size MB : 8192
> > > >>>>> MAC address : 00:16:3e:3b:8d:66
> > > >>>>> Boot type : disk
> > > >>>>> Number of CPUs : 2
> > > >>>>> CPU Type : model_Westmere
> > > >>>>>
> > > >>>>> Please confirm installation settings (Yes, No)[No]: yes
> > > >>>>> [ ERROR ] Invalid value
> > > >>>>>
> > > >>>>> Please confirm installation settings (Yes, No)[No]: Yes
> > > >>>>> [ INFO ] Stage: Transaction setup
> > > >>>>> [ INFO ] Stage: Misc configuration
> > > >>>>> [ INFO ] Stage: Package installation
> > > >>>>> [ INFO ] Stage: Misc configuration
> > > >>>>> [ INFO ] Configuring libvirt
> > > >>>>> [ INFO ] Configuring VDSM
> > > >>>>> [ INFO ] Starting vdsmd
> > > >>>>> [ INFO ] Waiting for VDSM hardware info
> > > >>>>> [ INFO ] Waiting for VDSM hardware info
> > > >>>>> [ INFO ] Connecting Storage Domain
> > > >>>>> [ INFO ] Configuring VM
> > > >>>>> [ INFO ] Updating hosted-engine configuration
> > > >>>>> [ INFO ] Stage: Transaction commit
> > > >>>>> [ INFO ] Stage: Closing up
> > > >>>>> To continue make a selection from the options below:
> > > >>>>> (1) Continue setup - engine installation is complete
> > > >>>>> (2) Power off and restart the VM
> > > >>>>> (3) Abort setup
> > > >>>>>
> > > >>>>> (1, 2, 3)[1]:
> > > >>>>> [ INFO ] Engine replied: DB Up!Welcome to Health Status!
> > > >>>>> [ ERROR ] Cannot automatically add the host to the Default cluster:
> > > >>>>> Cannot add Host. Host with the same address already exists.
> > > >>>>> [ INFO ] Waiting for the host to become operational in the engine.
> > > >>>>> This
> > > >>>>> may take several minutes...
> > > >>>>> [ INFO ] Still waiting for VDSM host to become operational...
> > > >>>>> [ INFO ] Still waiting for VDSM host to become operational...
> > > >>>>>
> > > >>>>> And the stacktrace from the logs:
> > > >>>>>
> > > >>>>> 2014-09-19 14:14:07 DEBUG
> > > >>>>> otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
> > > >>>>> add_host._closeup:438 Cannot add the host to the Default cluster
> > > >>>>> Traceback (most recent call last):
> > > >>>>> File
> > > >>>>> "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/ovirt-hosted-engine-setup/engine/add_host.py",
> > > >>>>>
> > > >>>>>
> > > >>>>> line 432, in _closeup
> > > >>>>> override_iptables=True,
> > > >>>>> File
> > > >>>>> "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/brokers.py",
> > > >>>>> line 9779, in add
> > > >>>>> headers={"Expect":expect, "Correlation-Id":correlation_id}
> > > >>>>> File
> > > >>>>> "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/proxy.py",
> > > >>>>> line 88, in add
> > > >>>>> return self.request('POST', url, body, headers)
> > > >>>>> File
> > > >>>>> "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/proxy.py",
> > > >>>>> line 118, in request
> > > >>>>> persistent_auth=self._persistent_auth)
> > > >>>>> File
> > > >>>>> "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/proxy.py",
> > > >>>>> line 140, in __doRequest
> > > >>>>> persistent_auth=persistent_auth
> > > >>>>> File
> > > >>>>> "/usr/lib/python2.6/site-packages/ovirtsdk/web/connection.py",
> > > >>>>> line 134, in doRequest
> > > >>>>> raise RequestError, response
> > > >>>>> RequestError:
> > > >>>>> status: 409
> > > >>>>> reason: Conflict
> > > >>>>> detail: Cannot add Host. Host with the same address already exists.
> > > >>>>> 2014-09-19 14:14:07 ERROR
> > > >>>>> otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
> > > >>>>> add_host._closeup:445 Cannot automatically add the host to the
> > > >>>>> Default
> > > >>>>> cluster:
> > > >>>>> Cannot add Host. Host with the same address already exists.
> > > >>>>>
> > > >>>>>
> > > >>>>> Cheers,
> > > >>>>> Stefan
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>> _______________________________________________
> > > >>>>> Users mailing list
> > > >>>>> Users at ovirt.org
> > > >>>>> http://lists.ovirt.org/mailman/listinfo/users
> > > >>>>>
> > > >>>>
> > > >>>>
> > > >>>> what type of hardware is this? check the host uuid is not the same
> > > >>>> on
> > > >>>> both please.
> > > >>>> http://lists.ovirt.org/pipermail/users/2014-September/027278.html
> > > >>>
> > > >>> Hi,
> > > >>>
> > > >>> this is Supermicro Hardware. But the uuids differ. Anyway, I
> > > >>> regenerated
> > > >>> the uuid on node2. But I first have to fix another problem. After a
> > > >>> reboot the first engine on node1 doesn't start because it says the
> > > >>> storage path cannot be found. arrgh
> > > >>>
> > > >>> I will investigate this and report my findings.
> > > >>>
> > > >>> Cheers,
> > > >>> Stefan
> > > >>>
> > > >>> _______________________________________________
> > > >>> Users mailing list
> > > >>> Users at ovirt.org
> > > >>> http://lists.ovirt.org/mailman/listinfo/users
> > > >>
> > > >> Well everything is up and running again but I still have the same
> > > >> problem. I did a uuidgen > /etc/vdsm/vdsm.id on ovirt node 2 and 3
> > > >> even
> > > >> though the uuids were different already.
> > > >>
> > > >> What does ovirt mean by "Host with the same address already exists"?
> > > >> What HOST is it referring to?
> > > >>
> > > >> Greetings,
> > > >> Stefan
> > > >>
> > > >
> > > > oh, not same uuid, rather same host name (like ip address or dns name
> > > > used to access it)
> > > it - is the engine or the ovirt-node? The nodes have definitely
> > > different ip addresses and dns entries. This is verified.
> > >
> > > If it is the engine then I might have a problem understanding some
> > > things I Basically want one engine that runs on each node, if needed.
> > >
> > > Cheers
> >
> > The hosts.
> > Didi/Sandro?
>
> It will probably be simplest to remove the second (and third?) host
> from then engine, then try again.
> --
> Didi
>
>
--
Didi
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