Re: [ovirt-users] Messed up upgrade to 4.2. Solution badly needed.

[Yedidyah Bar David]

On Fri, Nov 3, 2017 at 2:21 PM, Marcin Jessa  wrote:
> Hi guys.
>
> I have VM with hosted engine and a two node setup. When beta came out I was 
> “OH! New shiny tech! Let’s try it!”. You all know the feeling.
> Unfortunately the upgrade process did not go as expected.
> I created a backup of my 4.1 installation and started to upgrade the VM. All 
> went well. I then migrated all the running VMs to my second node put the 
> cluster in global maintenance mode and updated one of the nodes.

Please provide more details.

You upgraded the engine vm to current 4.2 beta? yum update and engine-setup?

Then you moved a node to local maintenance, and updated it to 4.2
beta, using yum update?

Moving to global maintenance is for upgrading the engine vm, not a host.

Which documents did you follow?

> Then I run hosted-engine —upgrade-appliance on the node but it fails:

Where did you find instructions to use this tool?

It's meant only for migrations from 3.6 to 4.0, not general upgrades.

>
> [ ERROR ] Failed to execute stage 'Environment customization': exceptions 
> must be old-style classes or derived from BaseException, not str
>
> The log file says:
> 2017-11-03 13:12:48,259+0100 DEBUG otopi.context context._executeMethod:143 
> method exception
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/site-packages/otopi/context.py", line 133, in 
> _executeMethod
> method['method']()
>   File 
> "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/gr-he-upgradeappliance/engine/misc.py",
>  line 180, in _check_spm
> 'Unable to find this host in the engine, '
> TypeError: exceptions must be old-style classes or derived from 
> BaseException, not str
> 2017-11-03 13:12:48,259+0100 ERROR otopi.context context._executeMethod:152 
> Failed to execute stage 'Environment customization': exceptions must be 
> old-style classes or derived from BaseException, not str
> 2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:821 
> ENVIRONMENT DUMP - BEGIN
> 2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:831 
> ENV BASE/error=bool:'True'
> 2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:831 
> ENV BASE/exceptionInfo=list:'[(, 
> TypeError('exceptions must be old-style classes or derived from 
> BaseException, not str',), )]'
> 2017-11-03 13:12:48,261+0100 DEBUG otopi.context context.dumpEnvironment:835 
> ENVIRONMENT DUMP - END

AFAICT a failure at this stage should be harmless - it's before doing
significant changes to the system.

Please share the log, just in case.

>
> I can login to the hosted engine but the nodes are down, the VMs are down and 
> the storage is not connected.

Are you sure all was fine before you ran this tool?
I do not think your problems are a result of running the tool.

>
> Can you please advice what to do now?
> Is there a way to upgrade my setup?
> Should I disconnect my second node, which is also upgraded to 4.2 now and try 
> to install hosted engine from scratch?
> Anything else I can do to save my VMs?

Not sure what your exact state is, or what is important to you and what isn't.

Are your VMs up?

Is it important to keep them up?

If not, you can reinstall everything from scratch and import the storage domain.

Otherwise, please provide more details - including relevant logs
(engine, vdsm, etc),
actions you took, etc.

Generally speaking, current 4.2 is not meant for production yet.
It's intended for people that want to see/test the new features etc.

Regards,
-- 
Didi
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Re: [ovirt-users] Messed up upgrade to 4.2. Solution badly needed.

[FERNANDO FREDIANI]

oVirt upgrades between versions (major or minor) has always been a bit 
difficult for some people, including me. It would be nice if this could 
be more extensively tested before release. As people are mostly eager to 
upgrade this can be benefitial to dev team to gather even more feedback 
from early adopters.


Regards
Fernando Frediani


On 03/11/2017 10:21, Marcin Jessa wrote:

Hi guys.

I have VM with hosted engine and a two node setup. When beta came out I was 
“OH! New shiny tech! Let’s try it!”. You all know the feeling.
Unfortunately the upgrade process did not go as expected.
I created a backup of my 4.1 installation and started to upgrade the VM. All 
went well. I then migrated all the running VMs to my second node put the 
cluster in global maintenance mode and updated one of the nodes.
Then I run hosted-engine —upgrade-appliance on the node but it fails:

[ ERROR ] Failed to execute stage 'Environment customization': exceptions must 
be old-style classes or derived from BaseException, not str

The log file says:
2017-11-03 13:12:48,259+0100 DEBUG otopi.context context._executeMethod:143 
method exception
Traceback (most recent call last):
   File "/usr/lib/python2.7/site-packages/otopi/context.py", line 133, in 
_executeMethod
 method['method']()
   File 
"/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/gr-he-upgradeappliance/engine/misc.py",
 line 180, in _check_spm
 'Unable to find this host in the engine, '
TypeError: exceptions must be old-style classes or derived from BaseException, 
not str
2017-11-03 13:12:48,259+0100 ERROR otopi.context context._executeMethod:152 
Failed to execute stage 'Environment customization': exceptions must be 
old-style classes or derived from BaseException, not str
2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:821 
ENVIRONMENT DUMP - BEGIN
2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:831 
ENV BASE/error=bool:'True'
2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:831 ENV 
BASE/exceptionInfo=list:'[(, TypeError('exceptions must 
be old-style classes or derived from BaseException, not str',), )]'
2017-11-03 13:12:48,261+0100 DEBUG otopi.context context.dumpEnvironment:835 
ENVIRONMENT DUMP - END

I can login to the hosted engine but the nodes are down, the VMs are down and 
the storage is not connected.

Can you please advice what to do now?
Is there a way to upgrade my setup?
Should I disconnect my second node, which is also upgraded to 4.2 now and try 
to install hosted engine from scratch?
Anything else I can do to save my VMs?


Cheers
Marcin.
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[ovirt-users] Messed up upgrade to 4.2. Solution badly needed.

[Marcin Jessa]

Hi guys.

I have VM with hosted engine and a two node setup. When beta came out I was 
“OH! New shiny tech! Let’s try it!”. You all know the feeling.
Unfortunately the upgrade process did not go as expected. 
I created a backup of my 4.1 installation and started to upgrade the VM. All 
went well. I then migrated all the running VMs to my second node put the 
cluster in global maintenance mode and updated one of the nodes.
Then I run hosted-engine —upgrade-appliance on the node but it fails:

[ ERROR ] Failed to execute stage 'Environment customization': exceptions must 
be old-style classes or derived from BaseException, not str

The log file says:
2017-11-03 13:12:48,259+0100 DEBUG otopi.context context._executeMethod:143 
method exception
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/otopi/context.py", line 133, in 
_executeMethod
method['method']()
  File 
"/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/gr-he-upgradeappliance/engine/misc.py",
 line 180, in _check_spm
'Unable to find this host in the engine, '
TypeError: exceptions must be old-style classes or derived from BaseException, 
not str
2017-11-03 13:12:48,259+0100 ERROR otopi.context context._executeMethod:152 
Failed to execute stage 'Environment customization': exceptions must be 
old-style classes or derived from BaseException, not str
2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:821 
ENVIRONMENT DUMP - BEGIN
2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:831 
ENV BASE/error=bool:'True'
2017-11-03 13:12:48,260+0100 DEBUG otopi.context context.dumpEnvironment:831 
ENV BASE/exceptionInfo=list:'[(, 
TypeError('exceptions must be old-style classes or derived from BaseException, 
not str',), )]'
2017-11-03 13:12:48,261+0100 DEBUG otopi.context context.dumpEnvironment:835 
ENVIRONMENT DUMP - END

I can login to the hosted engine but the nodes are down, the VMs are down and 
the storage is not connected.

Can you please advice what to do now? 
Is there a way to upgrade my setup?
Should I disconnect my second node, which is also upgraded to 4.2 now and try 
to install hosted engine from scratch?
Anything else I can do to save my VMs?


Cheers
Marcin.
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