8:43 a.m.
Hi,
finally I've got the new hosted-engine feature running on
RHEL6 using oVirt 3.4 BETA/nightly. I've come across a few
issues and wanted to clarify if this is the desired
behaviour:
1.) hosted-engine storage domain not visible in GUI
The NFS-Storage I've used to install the hosted-engine
is not visible in oVirt's Admin Portal. Though it is mounted
on my oVirt Node below /rhev/data-center/mnt/. I tried to
import this storage domain, but apparently this fails because
it's already mounted.
Is there any way to make this storage domain visible?
2.) hosted-engine VM device are not visible in GUI
The disk and network devices are not visible in the
admin portal. Thus I'm unable to change anything.
Is this intended? If so, how am I supposed to make changes?
3.) move hosted-engine VM to a different storage
Because of all of the above I seem to be unable to move
my hosted-engine VM to a different NFS-Storage. How can
this be done?
Thanks
- Frank
4:48 p.m.
On 01/25/2014 03:43 PM, Frank Wall wrote:
Hi,
finally I've got the new hosted-engine feature running on
RHEL6 using oVirt 3.4 BETA/nightly. I've come across a few
issues and wanted to clarify if this is the desired
behaviour:
1.) hosted-engine storage domain not visible in GUI
The NFS-Storage I've used to install the hosted-engine
is not visible in oVirt's Admin Portal. Though it is mounted
on my oVirt Node below /rhev/data-center/mnt/. I tried to
import this storage domain, but apparently this fails because
it's already mounted.
Is there any way to make this storage domain visible?
not yet.
2.) hosted-engine VM device are not visible in GUI
The disk and network devices are not visible in the
admin portal. Thus I'm unable to change anything.
Is this intended? If so, how am I supposed to make changes?
the VM should be visible, the disk/nics - not yet.
3.) move hosted-engine VM to a different storage
Because of all of the above I seem to be unable to move
my hosted-engine VM to a different NFS-Storage. How can
this be done?
not yet (from the webadmin).
if you shutdown the engine and fix the config manually, should be doable.
Thanks
- Frank
_______________________________________________
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http://lists.ovirt.org/mailman/listinfo/users
10:25 a.m.
Hi Itamar,
On Sat, Jan 25, 2014 at 11:48:00PM +0200, Itamar Heim wrote:
> 2.) hosted-engine VM device are not visible in GUI
> The disk and network devices are not visible in the
> admin portal. Thus I'm unable to change anything.
> Is this intended? If so, how am I supposed to make changes?
the VM should be visible, the disk/nics - not yet.
confirmed.
> 3.) move hosted-engine VM to a different storage
> Because of all of the above I seem to be unable to move
> my hosted-engine VM to a different NFS-Storage. How can
> this be done?
not yet (from the webadmin).
if you shutdown the engine and fix the config manually,
should be doable.
OK, I'll give this a try. Just to be sure: If I move the
hosted-engine VM to a different storage domain from the
command line, will this storage domain still be visible
from the webadmin? Or will it be hidden, because it runs
the hosted-engine?
Thanks
- Frank
11:21 a.m.
On 01/26/2014 05:25 PM, Frank Wall wrote:
Hi Itamar,
On Sat, Jan 25, 2014 at 11:48:00PM +0200, Itamar Heim wrote:
>> 2.) hosted-engine VM device are not visible in GUI
>> The disk and network devices are not visible in the
>> admin portal. Thus I'm unable to change anything.
>> Is this intended? If so, how am I supposed to make changes?
>
> the VM should be visible, the disk/nics - not yet.
confirmed.
>> 3.) move hosted-engine VM to a different storage
>> Because of all of the above I seem to be unable to move
>> my hosted-engine VM to a different NFS-Storage. How can
>> this be done?
>
> not yet (from the webadmin).
> if you shutdown the engine and fix the config manually,
> should be doable.
OK, I'll give this a try. Just to be sure: If I move the
hosted-engine VM to a different storage domain from the
command line, will this storage domain still be visible
from the webadmin? Or will it be hidden, because it runs
the hosted-engine?
oh - do *not* move it to a storage domain managed by the engine at this
point.
12:10 p.m.
Hi Itamar,
On Sun, Jan 26, 2014 at 06:21:03PM +0200, Itamar Heim wrote:
> OK, I'll give this a try. Just to be sure: If I move the
> hosted-engine VM to a different storage domain from the
> command line, will this storage domain still be visible
> from the webadmin? Or will it be hidden, because it runs
> the hosted-engine?
oh - do *not* move it to a storage domain managed by the engine at this
point.
oh that was close! I've almost started the migration.
Would it be safe to just move the hosted-engine VM to
another host (without changing the storage domain)?
I thought of copying all files in /etc/ovirt-hosted-engine*
to a second ovirt node and starting the VM there... any objections?
Anyway, I'm here to test new things once the issues I've
mentioned in this thread have been addressed.
Thanks
- Frank
12:13 p.m.
On 01/26/2014 07:10 PM, Frank Wall wrote:
Hi Itamar,
On Sun, Jan 26, 2014 at 06:21:03PM +0200, Itamar Heim wrote:
>> OK, I'll give this a try. Just to be sure: If I move the
>> hosted-engine VM to a different storage domain from the
>> command line, will this storage domain still be visible
>> from the webadmin? Or will it be hidden, because it runs
>> the hosted-engine?
>
> oh - do *not* move it to a storage domain managed by the engine at this
> point.
oh that was close! I've almost started the migration.
Would it be safe to just move the hosted-engine VM to
another host (without changing the storage domain)?
I thought of copying all files in /etc/ovirt-hosted-engine*
to a second ovirt node and starting the VM there... any objections?
Anyway, I'm here to test new things once the issues I've
mentioned in this thread have been addressed.
hosted engine supports running on *multiple* nodes, providing out of the
box HA between them.
the setup should ask you if this is the second host and take care of all
the right things to copy.
(iirc, copying by yourself without knowing the internal details is risky
if the first host could still be used. better to add the 2nd host per
procedure, then keep or remove the 1st host)
Thanks
- Frank
3:38 p.m.
Hi Itamar,
On Sun, Jan 26, 2014 at 07:13:35PM +0200, Itamar Heim wrote:
hosted engine supports running on *multiple* nodes, providing out of
the
box HA between them.
the setup should ask you if this is the second host and take care of all
the right things to copy.
thanks for the pointer. The documentation at [1] describes the
required steps to setup a second node. Unfortunately it failed
for me because my second node was added to the cluster before [2].
Even manual setting the second node to "maintenance" and back
to state "up" didn't help, hosted-engine-setup as unable to
detect the host's state [3].
Though following the steps was enough to start the hosted-engine
VM manually on the second node. This makes a manual failover
possible, which is sufficient for now :)
Thanks
- Frank
[1]
http://www.ovirt.org/Hosted_Engine_Howto#Installing_additional_nodes
[2]
2014-01-26 18:24:59 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._closeup:437 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 431, in _closeup
override_iptables=True,
File "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/brokers.py",
line 8679, 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 UUID already exists.
2014-01-26 18:24:59 ERROR otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._closeup:444 Cannot automatically add the host to the Default cluster:
Cannot add Host. Host with the same UUID already exists.
[3]
2014-01-26 18:24:59 INFO otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:200 Waiting for the host to become operational in the engine.
This may take several minutes...
2014-01-26 18:24:59 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object has no
attribute 'status'
2014-01-26 18:24:59 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:229 VDSM host in state
2014-01-26 18:25:00 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object has no
attribute 'status'
2014-01-26 18:25:00 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:229 VDSM host in state
2014-01-26 18:25:01 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object has no
attribute 'status'
3:40 p.m.
On 01/26/2014 10:38 PM, Frank Wall wrote:
Hi Itamar,
On Sun, Jan 26, 2014 at 07:13:35PM +0200, Itamar Heim wrote:
> hosted engine supports running on *multiple* nodes, providing out of the
> box HA between them.
> the setup should ask you if this is the second host and take care of all
> the right things to copy.
thanks for the pointer. The documentation at [1] describes the
required steps to setup a second node. Unfortunately it failed
for me because my second node was added to the cluster before [2].
why would both your hosts have the same uuid?
Even manual setting the second node to "maintenance" and
back
to state "up" didn't help, hosted-engine-setup as unable to
detect the host's state [3].
you opened or made sure there is a bug for this i hope?
Though following the steps was enough to start the hosted-engine
VM manually on the second node. This makes a manual failover
possible, which is sufficient for now :)
Thanks
- Frank
[1]
http://www.ovirt.org/Hosted_Engine_Howto#Installing_additional_nodes
[2]
2014-01-26 18:24:59 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._closeup:437 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 431, in _closeup
override_iptables=True,
File "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/brokers.py",
line 8679, 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 UUID already exists.
2014-01-26 18:24:59 ERROR otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._closeup:444 Cannot automatically add the host to the Default cluster:
Cannot add Host. Host with the same UUID already exists.
[3]
2014-01-26 18:24:59 INFO otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:200 Waiting for the host to become operational in the engine.
This may take several minutes...
2014-01-26 18:24:59 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object has no
attribute 'status'
2014-01-26 18:24:59 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:229 VDSM host in state
2014-01-26 18:25:00 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object has no
attribute 'status'
2014-01-26 18:25:00 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:229 VDSM host in state
2014-01-26 18:25:01 DEBUG otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object has no
attribute 'status'
3:52 p.m.
On Sun, Jan 26, 2014 at 10:40:18PM +0200, Itamar Heim wrote:
> thanks for the pointer. The documentation at [1] describes the
> required steps to setup a second node. Unfortunately it failed
> for me because my second node was added to the cluster before [2].
why would both your hosts have the same uuid?
Both hosts have different UUIDs. The second node was already
part of the cluster when I ran hosted-engine-setup... these
are the steps I took to trigger this error:
1. ran `hosted-engine --deploy` on a new RHEL6 host (node1)
2. manually added a second node through webadmin (node2)
3. ran `hosted-engine --deploy` on node2 to add a second hosted-engine VM
> Even manual setting the second node to "maintenance"
and back
> to state "up" didn't help, hosted-engine-setup as unable to
> detect the host's state [3].
you opened or made sure there is a bug for this i hope?
Not yet, because I thought it might not be supported to run
`hosted-engine --deploy` on a node where vdsmd is already running
and the node is already part of a oVirt cluster.
Regards
- Frank
3:54 p.m.
Hi,
----- Original Message -----
From: "Frank Wall" <fw(a)moov.de>
To: "Itamar Heim" <iheim(a)redhat.com>
Cc: users(a)ovirt.org, "Doron Fediuck" <dfediuck(a)redhat.com>, "Oved
Ourfalli" <oourfali(a)redhat.com>, "Sandro Bonazzola"
<sbonazzo(a)redhat.com>, "Yedidyah Bar David" <didi(a)redhat.com>
Sent: Sunday, January 26, 2014 10:38:11 PM
Subject: Re: [Users] Hosted-engine runtime issues (3.4 BETA)
Hi Itamar,
On Sun, Jan 26, 2014 at 07:13:35PM +0200, Itamar Heim wrote:
> hosted engine supports running on *multiple* nodes, providing out of the
> box HA between them.
> the setup should ask you if this is the second host and take care of all
> the right things to copy.
thanks for the pointer. The documentation at [1] describes the
required steps to setup a second node. Unfortunately it failed
for me because my second node was added to the cluster before [2].
Indeed. Might it be possible to not just move to maintenance but remove
it from the engine? Then you can try again deploy as a second host.
Even manual setting the second node to "maintenance" and
back
to state "up" didn't help, hosted-engine-setup as unable to
detect the host's state [3].
This is obviously a bug, as Itamar suggested, but I do not think it will
be solved for 3.4, except for perhaps a cleaner error message.
Though following the steps was enough to start the hosted-engine
VM manually on the second node. This makes a manual failover
possible, which is sufficient for now :)
Well, this is also an unplanned, unsupported configuration. Might work
for you - I don't know about anyone that tried that - but if possible,
it's really better if you can add another host by hosted-engine --deploy.
Thanks
- Frank
[1]
http://www.ovirt.org/Hosted_Engine_Howto#Installing_additional_nodes
[2]
2014-01-26 18:24:59 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._closeup:437 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 431, in _closeup
override_iptables=True,
File "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/brokers.py",
line 8679, 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 UUID already exists.
2014-01-26 18:24:59 ERROR
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._closeup:444 Cannot automatically add the host to the Default
cluster:
Cannot add Host. Host with the same UUID already exists.
[3]
2014-01-26 18:24:59 INFO
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:200 Waiting for the host to become operational in
the engine. This may take several minutes...
2014-01-26 18:24:59 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object
has no attribute 'status'
2014-01-26 18:24:59 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:229 VDSM host in state
2014-01-26 18:25:00 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object
has no attribute 'status'
2014-01-26 18:25:00 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:229 VDSM host in state
2014-01-26 18:25:01 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.engine.add_host
add_host._wait_host_ready:213 Error fetching host state: 'NoneType' object
has no attribute 'status'
Thanks for the report and best regards,
--
Didi
4:04 p.m.
On Sun, Jan 26, 2014 at 03:54:34PM -0500, Yedidyah Bar David wrote:
Indeed. Might it be possible to not just move to maintenance but
remove
it from the engine? Then you can try again deploy as a second host.
I'll give it a spin. The host is scheduled for reinstallation tomorrow.
Well, this is also an unplanned, unsupported configuration. Might
work
for you - I don't know about anyone that tried that - but if possible,
it's really better if you can add another host by hosted-engine --deploy.
I was expecting this answer :-) That's OK for me, I just wanted to
try it out before reinstalling the host.
Thanks
- Frank
4:12 p.m.
----- Original Message -----
From: "Frank Wall" <fw(a)moov.de>
To: "Yedidyah Bar David" <didi(a)redhat.com>
Cc: "Itamar Heim" <iheim(a)redhat.com>, users(a)ovirt.org, "Doron
Fediuck" <dfediuck(a)redhat.com>, "Oved Ourfalli"
<oourfali(a)redhat.com>, "Sandro Bonazzola" <sbonazzo(a)redhat.com>
Sent: Sunday, January 26, 2014 11:04:23 PM
Subject: Re: [Users] Hosted-engine runtime issues (3.4 BETA)
On Sun, Jan 26, 2014 at 03:54:34PM -0500, Yedidyah Bar David wrote:
> Indeed. Might it be possible to not just move to maintenance but remove
> it from the engine? Then you can try again deploy as a second host.
I'll give it a spin. The host is scheduled for reinstallation tomorrow.
Good luck.
Please report about any results/issues. If it fails, you can try first, after
removing from the engine,
# yum remove libvirt vdsm
# rm -rf /etc/vdsm /etc/libvirt
(or, of course, just reinstall if you do not care).
> Well, this is also an unplanned, unsupported configuration. Might work
> for you - I don't know about anyone that tried that - but if possible,
> it's really better if you can add another host by hosted-engine --deploy.
I was expecting this answer :-) That's OK for me, I just wanted to
try it out before reinstalling the host.
That's just fine, of course. And it's nice to know that it worked :-)
Thanks
- Frank
Thanks,
--
Didi
5:02 p.m.
On Sun, Jan 26, 2014 at 04:12:05PM -0500, Yedidyah Bar David wrote:
Please report about any results/issues. If it fails, you can try
first, after
removing from the engine,
# yum remove libvirt vdsm
# rm -rf /etc/vdsm /etc/libvirt
(or, of course, just reinstall if you do not care).
I reinstalled the host and run `engine-setup --deploy` again.
This time adding the second host worked OK. Though I had to
workaround bugs BZ 1055153 and BZ 1055059 - I know you are already
aware of them :-)
https://bugzilla.redhat.com/show_bug.cgi?id=1055153 (vdsmd not starting on first run since
vdsm logs are not included in rpm)
https://bugzilla.redhat.com/show_bug.cgi?id=1055059 (The --vm-start function does not call
the createvm command but --vm-start-paused does)
So adding a second host basically works when using a fresh install.
Regards
- Frank
5:22 p.m.
----- Original Message -----
From: "Frank Wall" <fw(a)moov.de>
To: "Yedidyah Bar David" <didi(a)redhat.com>
Cc: "Itamar Heim" <iheim(a)redhat.com>, users(a)ovirt.org, "Doron
Fediuck" <dfediuck(a)redhat.com>, "Oved Ourfalli"
<oourfali(a)redhat.com>, "Sandro Bonazzola" <sbonazzo(a)redhat.com>
Sent: Tuesday, January 28, 2014 12:02:49 AM
Subject: Re: [Users] Hosted-engine runtime issues (3.4 BETA)
On Sun, Jan 26, 2014 at 04:12:05PM -0500, Yedidyah Bar David wrote:
> Please report about any results/issues. If it fails, you can try first,
> after
> removing from the engine,
> # yum remove libvirt vdsm
> # rm -rf /etc/vdsm /etc/libvirt
>
> (or, of course, just reinstall if you do not care).
I reinstalled the host and run `engine-setup --deploy` again.
This time adding the second host worked OK. Though I had to
workaround bugs BZ 1055153 and BZ 1055059 - I know you are already
aware of them :-)
https://bugzilla.redhat.com/show_bug.cgi?id=1055153 (vdsmd not starting on
first run since vdsm logs are not included in rpm)
https://bugzilla.redhat.com/show_bug.cgi?id=1055059 (The --vm-start function
does not call the createvm command but --vm-start-paused does)
So adding a second host basically works when using a fresh install.
Very well. Thanks for the report!
--
Didi
3983
days inactive
3985
days old
13 comments
3 participants
participants (3)
-
Frank Wall -
Itamar Heim -
Yedidyah Bar David