[Users] engine-backup --restore

[Juan Pablo Lorier]

Well, too soon to say boodbye.
Thought I used --change-db-credentials in the restore, the engine seems
to be unable to connect to the database. I assume that it didn't get the
new password, so, is there a way to tell the engine about the new password?
Regards,

On 12/02/14 16:03, Yedidyah Bar David wrote:
> ----- Original Message -----
>> From: "Juan Pablo Lorier" <jplorier at gmail.com>
>> To: "Yedidyah Bar David" <didi at redhat.com>
>> Cc: "Sahina Bose" <sabose at redhat.com>, "users" <users at ovirt.org>
>> Sent: Wednesday, February 12, 2014 7:55:35 PM
>> Subject: Re: [Users] Problems accesing the database
>>
>> Hi Yedidyah,
>>
>> But If I run engine-setup and then engine-backup restore shuldn't it
>> import the data to the existing db created by engine-setup?
>> That's shown everywhere so I thought it's a valid way to migrate
> No.
>
> There is a specific case in which this works automatically:
> All on the same host:
> 1. engine-setup
> 2. engine-backup --mode=backup
> (perhaps do other stuff here)
> 3. engine-cleanup
> 4. engine-backup --mode=restore
>
> Why does this work? Because 'engine-cleanup', since 3.3, does not drop
> the database nor user inside postgres. So when restore tries to access
> this database using this user and password it succeeds.
>
> In general, if you do the restore on another machine, and do there
> 'engine-setup; engine-cleanup' as a quick-postgres-provisioning-tool,
> you end up almost ready, but not quite - because the password is random,
> and therefore different between the installations. In principle you could
> have provided just the password to restore, but we decided that if you
> need to change the credentials, you should pass all of them (except for
> defaults).
>
> Hope this clarifies,


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