[Linux-HA] Learning the CIB

[vini.bill at gmail.com]

Excellent! Thanks!

Vinicius Menezes

On 1/8/07, Andreas Kurz <andreas.kurz at gmail.com> wrote:
>
> On 1/8/07, vini.bill at gmail.com <vini.bill at gmail.com> wrote:
> ...
> > Now I intend to document parts of the CIB configuration options that are
> > somehow obscure throughout the Linux-HA documentation. So... my
> questions
> > is:
> >
> > - In the primitve directive we have a "type" property which should
> receive
> > some expected values. Wich are these values? I'm looking everywhere on
> the
> > Linux-HA site and still haven't found anything.
>
> It is exactly as described in
> http://www.linux-ha.org/ClusterResourceManager/DTD1.0/Annotated:
> type - The name of the ResourceAgent you wish to use.
>
> So if your primitive is of class 'ocf' and the provider 'heartbeat'
> the type is the name of the RA located in
> '/usr/lib/ocf/resource.d/heartbeat'.
>
> Regards,
> Andreas
>
> >
> > Today I`ll probably ask more about the constraints, rules ans
> expressions
> > options.
> >
> > Vinicius Menezes
> >
> >
> > On 1/6/07, Andrew Beekhof <beekhof at gmail.com> wrote:
> > >
> > > On 1/5/07, Pavol Gono <palo.gono at gmail.com> wrote:
> > > > Hi
> > > >
> > > > Nice reading is in source tree:
> > > > crm/crm-1.0.dtd
> > > > crm/crm.txt (chapter 5)
> > > > Just take the latest sources from http://hg.linux-ha.org/dev/. Web
> > > > page http://www.linux-ha.org/ClusterResourceManager/DTD1.0/Annotated
> > > > is maybe not quite up-to-date.
> > > >
> > > > I'll answer what is simple to answer :)
> > > >
> > > >
> > > > On 1/5/07, vini.bill at gmail.com <vini.bill at gmail.com> wrote:
> > > > > Hi guys.
> > > > >
> > > > >     As I said in a previous mail, I'm Writing a document teaching
> how
> > > to use
> > > > > the CIB Tags, how to place them, what they mean and something more
> > > that I
> > > > > haven't foreseen. I intend to contribute it back to the project.
> I'd
> > > like to
> > > > > discuss some topics that I haven't understood very well so as I
> can
> > > write
> > > > > about them. I'll also make some minor comparsions with XHTML to
> make
> > > things
> > > > > a bit clearer to me but I won't make these on the final text.
> > > > >
> > > > >     Today, before leaving work I'll seek somewhere to post it so
> you
> > > can
> > > > > take a look at my progress. It`ll be in a Wiki format since I`m
> going
> > > to
> > > > > publish it on the wiki we have here and to make easier to add to
> the
> > > main
> > > > > documentation.
> > > > >
> > > > > 1) Is there any directive that isn't contained on the <cib> </cib>
> ?
> > > Can I
> > > > > create groups of configurations ( if yes, what would be the
> necessity
> > > to
> > > > > have it? ) ?
> > >
> > > i dont understand the question
> > >
> > > > >
> > > > > 2) There are only 4 configuration tags: (1) constraints, (2)
> > > crm_config and
> > > > > (3) resources and the (4) nodes. Is that right ?
> > > >
> > > > yes
> > >
> > > correct.  and how do we know this?
> > > we know this because the DTD says so:
> > >   <!ELEMENT configuration (crm_config, nodes, resources, constraints)>
> > >
> > > I suggest starting with wikipedia's entry on DTDs:
> > >     http://en.wikipedia.org/wiki/Document_Type_Definition
> > >
> > > >
> > > > >
> > > > > 3) What does the empty <nodes/> tag mean? The CRM daemon will fill
> in
> > > every
> > > > > node automagically ?
> > > >
> > > > yes, user doesn't need to fill in nodes tag.
> > > >
> > > > >
> > > > > 4) What do operations do in a primitive?
> > > >
> > > > e.g. you can tell heartbeat to monitor your resource
> > >
> > > or override various defaults... like what action to take if a start
> > > action fails (or how long to wait before deciding that it failed)
> > >
> > > >
> > > > >
> > > > > 5) What is the difference between <atributes> and
> <instance_atributes>
> > > ??
> > >
> > > more information?
> > >
> > > > > 6) Is there any tag missing on this page (
> > > > > http://www.linux-ha.org/ClusterResourceManager/DTD1.0/Annotated )
> that
> > > I
> > > > > should look for by myself ?
> > > >
> > > > See crm/crm-1.0.dtd
> > >
> > > correct, the online version seems to be somewhat out of date
> > >
> > > > > 7) What does the empty <status/> tag mean?
> > > >
> > > > status tag is filled in by heartbeat at runtime, user shouldn't
> write
> > > > to it. The command "cibadmin -Ql" is good for reading this tag.
> > > _______________________________________________
> > > Linux-HA mailing list
> > > Linux-HA at lists.linux-ha.org
> > > http://lists.linux-ha.org/mailman/listinfo/linux-ha
> > > See also: http://linux-ha.org/ReportingProblems
> > >
> >
> >
> >
> > --
> > ... Vinicius Menezes ...
> > _______________________________________________
> > Linux-HA mailing list
> > Linux-HA at lists.linux-ha.org
> > http://lists.linux-ha.org/mailman/listinfo/linux-ha
> > See also: http://linux-ha.org/ReportingProblems
> >
> _______________________________________________
> Linux-HA mailing list
> Linux-HA at lists.linux-ha.org
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>



-- 
... Vinicius Menezes ...