[Pacemaker] getting started

[hj lee]

> 1) Is there a way to start pacemaker and specify an xml file as the startup
> configuration?  Right now, I start openais/pacemaker, wait for DC election,
> then run cibadmin to load the file.  That's fine for now, but I want to
> automate this eventually.
>

I don't think it's possible.


> 2) Is there any way to shorten the time for DC election?  I was hoping to
> be able to specify a cluster-delay shorter than 60s by loading an xml file
> at startup, and thereby shorten this election time.


crm configure property dc-deadtime=10s


> 3) I can't seem to specify either an rsc_defaults or op_defaults section in
> an xml file.  When I try to specify rsc_defaults for instance, syslog shows:
>
> ov 18 08:57:57 ubuntu_1 cibadmin: [27658]: info: Invoked: cibadmin
> --replace --xml-file 2rcordered_1_sticky.xml
> Nov 18 08:57:57 ubuntu_1 cib: [27081]: ERROR: Extra element rsc_defaults in
> interleave
> Nov 18 08:57:57 ubuntu_1 cib: [27081]: ERROR: Element configuration failed
> to validate content
> Nov 18 08:57:57 ubuntu_1 cib: [27081]: ERROR: Element cib failed to
> validate content
> Nov 18 08:57:57 ubuntu_1 cib: [27081]: WARN: cib_perform_op: Updated CIB
> does not validate against pacemaker-1.0 schema/dtd
> Nov 18 08:57:57 ubuntu_1 cib: [27081]: WARN: cib_diff_notify: Update
> (client: cibadmin, call:2): 0.7.3 -> 3.29.1 (Update does not conform to the
> configured schema/DTD)


As the log suggested, the xml does not comform to pacemaker RelaxNG schema.
If you look /usr/share/pacemaker/pacemaker-1.0.rng, the rsc_defaults
requires element name "meta_attributes". So please change it to this:
 <rsc_defaults>
      <meta_attributes id="testid">
      <nvpair id="rsc-default-1" name="resource-stickiness" value="100"/>
      </meta_attributes>
  </rsc_defaults>

>
> 4) I'm trying to specify two collocated resources that don't have any
> startup dependency.  When I use the syntax:
>
>    <constraints>
>      <rsc_colocation id="coloc-1" score="INFINITY">
>        <resource_set id="collocated-set-1" sequential="false">
>          <resource_ref id="eyes"/>
>          <resource_ref id="clock"/>
>        </resource_set>
>      </rsc_colocation>
>    </constraints>
>
It does not seem correct. Please use crm configure command to configure the
cluster rather than xml until you you become very famillar with it.
crm configure colocation coloc-1 inf: clock eyes
Isn't it much simpler?

 Thanks
hj
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