[Engine-devel] Share Your Thoughts

Gilad Chaplik gchaplik at redhat.com
Sun Mar 23 14:36:07 UTC 2014



Thanks, 
Gilad.

----- Original Message -----
> From: "Itamar Heim" <iheim at redhat.com>
> To: "Gilad Chaplik" <gchaplik at redhat.com>, "Eli Mesika" <emesika at redhat.com>
> Cc: "engine-devel" <engine-devel at ovirt.org>
> Sent: Sunday, March 23, 2014 4:13:41 PM
> Subject: Re: [Engine-devel] Share Your Thoughts
> 
> On 03/23/2014 04:01 PM, Gilad Chaplik wrote:
> >
> >
> > Thanks,
> > Gilad.
> >
> > ----- Original Message -----
> >> From: "Omer Frenkel" <ofrenkel at redhat.com>
> >> To: "Eli Mesika" <emesika at redhat.com>
> >> Cc: "Gilad Chaplik" <gchaplik at redhat.com>, "engine-devel"
> >> <engine-devel at ovirt.org>
> >> Sent: Sunday, March 23, 2014 3:35:28 PM
> >> Subject: Re: [Engine-devel] Share Your Thoughts
> >>
> >>
> >>
> >> ----- Original Message -----
> >>> From: "Eli Mesika" <emesika at redhat.com>
> >>> To: "Gilad Chaplik" <gchaplik at redhat.com>
> >>> Cc: "engine-devel" <engine-devel at ovirt.org>
> >>> Sent: Sunday, March 23, 2014 2:41:15 PM
> >>> Subject: Re: [Engine-devel] Share Your Thoughts
> >>>
> >>>
> >>>
> >>> ----- Original Message -----
> >>>> From: "Eli Mesika" <emesika at redhat.com>
> >>>> To: "Gilad Chaplik" <gchaplik at redhat.com>
> >>>> Cc: "engine-devel" <engine-devel at ovirt.org>
> >>>> Sent: Sunday, March 23, 2014 2:36:17 PM
> >>>> Subject: Re: [Engine-devel] Share Your Thoughts
> >>>>
> >>>>
> >>>>
> >>>> ----- Original Message -----
> >>>>> From: "Gilad Chaplik" <gchaplik at redhat.com>
> >>>>> To: "engine-devel" <engine-devel at ovirt.org>
> >>>>> Sent: Sunday, March 23, 2014 2:06:01 PM
> >>>>> Subject: [Engine-devel] Share Your Thoughts
> >>>>>
> >>>>> Dear Devel Community Members,
> >>>>>
> >>>>> We are having a small discussion on patch:
> >>>>> http://gerrit.ovirt.org/#/c/25633/,
> >>>>> bug 1065753 - "Maintenance operations on a VM would ask for an optional
> >>>>> reason" (adding a note to stop/shutdown VM, that will be cleared when
> >>>>> the
> >>>>> VM
> >>>>> go up).
> >>>>>
> >>>>> The proposed solution is to add a free text field in the VM entity, and
> >>>>> to
> >>>>> update it in command's parameters (StopVmParmas.. etc.).
> >>>>>
> >>>>> I think slightly different, my alternative is to enhance the current
> >>>>> free
> >>>>> text (comment field) into XML, and allow to add multiple comments that
> >>>>> include types.
> >>>>> You are welcome to read more about it in the patch's comments.
> >>>>>
> >>>>> Thoughts?
> >>>>
> >>>> I suggest a third approach
> >>>> We are logging here a reason for a user/admin operation
> >>>> The natural place for such information is the audit log and not the VM
> >>>> tables.
> >>>> I think that the audit log messages related for the stop/shutdown
> >>>> commands
> >>>> should be enhanced to include a {REASON} field then the command itself
> >>>> will
> >>>> replace this value in the message with the one given by the user and we
> >>>> are
> >>>> done.
> >>>> Again, the required information is a pure logging issue, therefor I
> >>>> suggest
> >>>> to put this information in the correct place for it, there is no point
> >>>> in
> >>>> saving any logging messages in any entity table.
> >>>>
> >>>> Technically:
> >>>> 1) The option for giving a reason should be configurable (per Cluster if
> >>>> I
> >>>> look at Arthur comment in the BZ)
> >>>> 2) If the option is on than any stop/shutdown will ask for reason and
> >>>> sent
> >>>> it
> >>>> in the command parameters
> >>> than=>then
> >>>> 3) If the command succeed and got a non-empty reason , it will set the
> >>>> reason
> >>>> in the command audit log message
> >>>>
> >>>
> >>> 4) We gain here additional advantage since we can :
> >>>     a) search for the reason using the search engine
> >>>     b) get the reason in the message text sent to us if we are subscribed
> >>>     for
> >>>     the VM stop/shotdown event ans using engine-notifier
> >>>
> >>>>
> >>>> Eli
> >>>>
> >>
> >> +1
> >> sounds like a good and simple idea
> >
> > +1, BUT this is completely a different feature, and more difficult (MUCH
> > more, if I may add).
> > IMHO we need both, lets start with the no-brainer.
> 
> AuditLog gets recycled after 30 days. the reason i stopped my VM may
> still be relevant.
> I would not make fields complex/composite. they need to be easily
> useable via the CLI for example.

I think we need multiple comments, so we need to think about the RESTful api anyhow.
I guess that next feature will be a reason for 'wipe after stop'/any other BE that needs reasoning.

> 
> >
> >>
> >>>>>
> >>>>> Thanks,
> >>>>> Gilad.
> >>>>> _______________________________________________
> >>>>> Engine-devel mailing list
> >>>>> Engine-devel at ovirt.org
> >>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> >>>>>
> >>>>
> >>> _______________________________________________
> >>> Engine-devel mailing list
> >>> Engine-devel at ovirt.org
> >>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> >>>
> >>
> > _______________________________________________
> > Engine-devel mailing list
> > Engine-devel at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> >
> 
> 



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