[ovirt-users] hosted-engine restore

[Yedidyah Bar David]

On Thu, Aug 3, 2017 at 4:32 AM, Gary Pedretty <gary at ravnalaska.net> wrote:
> When attempting to do the restore to a clean engine install before engine
> setup is run as per the documentation, the restore ends with an error about
> restoring the history.
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> root at fai-kvm-engine backup]# engine-backup --mode=restore
> --file=/backup/ovirt-backup07302017.bak
> --log=/usr/local/share/ovirtbackup.log --provision-db --provision-dwh-db
> --restore-permissions
> Preparing to restore:
> - Unpacking file '/backup/ovirt-backup07302017.bak'
> Restoring:
> - Files
> Provisioning PostgreSQL users/databases:
> - user 'engine', database 'engine'
> - user 'ovirt_engine_history', database 'ovirt_engine_history'
> Restoring:
> - Engine database 'engine'
>   - Cleaning up temporary tables in engine database 'engine'
>   - Resetting DwhCurrentlyRunning in dwh_history_timekeeping in engine
> database
> ------------------------------------------------------------------------------
> Please note:
>
> The engine database was backed up at 2017-07-30 23:05:43.000000000 -0800 .
>
> Objects that were added, removed or changed after this date, such as virtual
> machines, disks, etc., are missing in the engine, and will probably require
> recovery or recreation.
> ------------------------------------------------------------------------------
> - DWH database 'ovirt_engine_history'
> FATAL: Errors while restoring database ovirt_engine_history

Please check/share the restore log.

> [root at fai-kvm-engine backup]#
>
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> If I continue and run engine-setup, then it fails with the following.
>
> It seems that you are running your engine inside of the hosted-engine VM and
> are not in "Global Maintenance" mode

Perhaps you ran engine-setup more than once?
The above error message should not happen on the first (successful)
run immediately after restore.

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> ------------------------------------------------------------------------
> Gary Pedretty                                        gary at ravnalaska.net
> Systems Manager                                          www.flyravn.com
> Ravn Alaska                           /\                    907-450-7251
> 5245 Airport Industrial Road         /  \/\             907-450-7238 fax
> Fairbanks, Alaska  99709        /\  /    \ \ Second greatest commandment
> Serving All of Alaska          /  \/  /\  \ \/\   “Love your neighbor as
> Green, green as far as the eyes can see             yourself” Matt 22:39
> ------------------------------------------------------------------------
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> On Aug 2, 2017, at 9:56 AM, Gary Pedretty <gary at ravnalaska.net> wrote:
>
> When restoring a self hosted-engine from a backup, the documentation at
>
> https://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restoring_an_EL-Based_Self-Hosted_Environment/
>
> Shows creating a new host server and then doing the hosted-engine —deploy
> and manually installing the ovirt-engine instead of using the
> ovirt-engine-appliance.  If the hosted-engine deployment that was backed up
> and is being restored, was created using the appliance, should I still
> follow this documentation and manually install the engine, run the restore,
> then do the engine-setup?  Or should I use the ovirt-engine-appliance and
> just run the restore before the engine-setup?

There is no inherent difference between using the appliance
and not using it. Recent versions, though, only allow using
the appliance - so now you really have no option.

You do have to make sure you do not ask 'hosted-engine --deploy'
to automatically run engine-setup - you have to manually login,
restore, then run engine-setup.

Best,

>
>
> Gary
>
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> ------------------------------------------------------------------------
> Gary Pedretty                                        gary at ravnalaska.net
> Systems Manager                                          www.flyravn.com
> Ravn Alaska                           /\                    907-450-7251
> 5245 Airport Industrial Road         /  \/\             907-450-7238 fax
> Fairbanks, Alaska  99709        /\  /    \ \ Second greatest commandment
> Serving All of Alaska          /  \/  /\  \ \/\   “Love your neighbor as
> Green, green as far as the eyes can see             yourself” Matt 22:39
> ------------------------------------------------------------------------
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-- 
Didi