[Users] centralized Logging engine and hypervisor

[Alon Bar-Lev]

----- Original Message -----
> From: "Martin Perina" <mperina at redhat.com>
> To: "Alon Bar-Lev" <alonbl at redhat.com>
> Cc: users at ovirt.org, "Sven Kieske" <S.Kieske at mittwald.de>
> Sent: Thursday, March 20, 2014 10:12:31 AM
> Subject: Re: [Users] centralized Logging engine and hypervisor
> 
> 
> 
> ----- Original Message -----
> > From: "Sven Kieske" <S.Kieske at mittwald.de>
> > To: "Martin Perina" <mperina at redhat.com>
> > Cc: users at ovirt.org
> > Sent: Thursday, March 20, 2014 9:02:19 AM
> > Subject: Re: [Users] centralized Logging engine and hypervisor
> > 
> > Hi and thanks for this reply, I guess this will help me.
> > 
> > I'm going to test it.
> > 
> > Meanwhile I want to ask:
> > 
> > Is this the correct location for an configuration file?
> > 
> > I know it is maybe not intended for "normal" use to
> > tweak this file, but I think it is a configuration file
> > after all and should be under /etc/ like all the others?
> > 
> > (This is why I didn't find it, I was just looking under /etc/ )
> 
> Well, probably due to other configuration included in this file, which
> users shouldn't rather touch.
> 
> Alon, can you comment?

Hi,

The jboss service xml is sensitive monolithic block of data as any J2EE resource, to make it complex, the format is XML.

We cannot put it in /etc as every upgrade requires to overwrite the file for product to be usable.

In order to allow some level of customization we inject variable from /etc/ovirt-engine/engine.conf[.d/*.conf] into the content upon service start. As the logging part of this file, and the nature of the syntax is not fixed, I yet not found a decent solution[1].

What I really want to see, is that we can programmatic control what loggers we have and what level to enable and add these into our own configuration, detaching from jboss configuration, and even maybe can modify the log level dynamically at runtime as expected from this scale of application.

I had short discussion about this with Mooli, I hope someone is capable of taking such task.

Regards,
Alon

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1017042

> 
> > 
> > Am 19.03.2014 18:41, schrieb Martin Perina:
> > 
> > > 4) /usr/share/ovirt-engine/services/ovirt-engine/ovirt-engine.xml.in
> > >   - for ovirt-engine service (webadmin & userportal)
> > 
> > --
> > Mit freundlichen Grüßen / Regards
> > 
> > Sven Kieske
> > 
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>