Re: [Unity-idm-discuss] configuration lost after restart

[Sander A. <sa....@fz...>]

Hi Krzysztof,

On Thu, 2021-08-19 at 12:28 +0200, Krzysztof Benedyczak wrote:
> Hi Sander,
> 
> W dniu 19.08.2021 o 08:32, Sander Apweiler pisze:
> > Good morning Krzysztof, all,
> > 
> > we encountered a problem with configuration loss after restarts. We
> > are
> > using the configuration files everywhere where it is possible
> > because
> > we are using puppet as configuration management service.
> > 
> > The configuration loss we encountered is e.g.
> > - attached attribute classes
> > - attribute statements
> > 
> > If there is a large timeframe between changes and restart, they are
> > kept. So it is difficult to reproduce this problem.
> 
> That sounds as a very serious problem, however doesn't ring any bell.
> Attribute classes and statements as attached to groups can be only 
> stored to and loaded from DB. So I don't think that configuration
> files 
> matter here. There is also no write-cache that could trigger such 
> situation. I would be less confident in case of objects that are
> stored 
> in DB but can be also reloaded from config files, but that's not the 
> case here.
> 
> I'd investigate whether perhaps you have some DB migration policy
> which 
> looses some data written recently? 
I don't think so. We use a local mariadb instance only for unity with
nightly db dumps as backup.
> Or maybe some of the data (e.g. 
> groups) are re-initialized on each restart with either groovy script
> or 
> via REST? In such case bugs in such automation may overwrite what is
> in DB.
We don't run any groovy scripts or API calls here.

I will write down when I make online changes and check after reboots if
they are still in place. When I can limit the time frame where it
happens, I let you know.

But at least the loss of attribute classes information happened more
than once. 

Cheers,
Sander
> 
> HTHm
> Krzysztof
> 
> 

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Federated Systems and Data
Juelich Supercomputing Centre

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