[Pacemaker] Re: Understanding rules: location, colocation, order. Using with Master/Slave

[Andrew Beekhof]

On Oct 28, 2008, at 11:38 AM, Adrian Chapela wrote:

> only one question. I test my constraints and the first error is:
>
> cibadmin[24943]: 2008/10/28_10:46:21 ERROR: IDREF attribute first  
> references an unknown ID "pingd"
>
> pingd will be the name of a resource, need you configure resources  
> before update a contrainsta referencing these resources ? In the  
> past I could update constraints independently you have configured  
> the resource. Is it a new thing ?

Yes it's new.
The schema wont allow you to add a constraint for a resource that  
doesn't yet exist (or remove a resource if it is referenced in a  
constraint).

To update the config with both at the same time, run 'cibadmin -M -- 
xml-file blah.xml' with something like the following:

<configuration>
<crm_config>
   <cluster_property_set id="cib-bootstrap-options">
     <nvpair id="cib-bootstrap-options-stonith" name="stonith-enabled"  
value="false"/>
     <nvpair id="cib-bootstrap-options-no-quorum-policy" name="no- 
quorum-policy" value="ignore"/>
   </cluster_property_set>
</crm_config>
<resources>
<clone id="o2cb-clone">
	<meta_attributes id="o2cb-options">
		<nvpair id="o2cb-unique" name="globally-unique" value="false"/>
		<nvpair id="o2cb-interleave" name="interleave" value="true"/>
	</meta_attributes>
	<primitive id="o2cb" class="lsb" type="o2cb">
		<operations>
			<op id="o2cb-check" name="monitor" interval="60s" timeout="30s"/>
		</operations>
	</primitive>
</clone>
<clone id="dlm-clone">
	<meta_attributes id="dlm-options">
		<nvpair id="dlm-unique" name="globally-unique" value="false"/>
		<nvpair id="dlm-interleave" name="interleave" value="true"/>
	</meta_attributes>
	<primitive id="dlm" class="ocf" provider="pacemaker" type="controld">
		<operations>
			<op id="dlm-check" name="monitor" interval="60s" timeout="30s"/>
		</operations>
	</primitive>
</clone>
<clone id="fs-clone">
   <meta_attributes id="fs-options">
     <nvpair id="fs-unique" name="globally-unique" value="false"/>
     <nvpair id="fs-interleave" name="interleave" value="true"/>
   </meta_attributes>
   <primitive id="fs" class="ocf" provider="heartbeat"  
type="Filesystem">
   <instance_attributes id="fs-attrs">
     <nvpair id="fs-dev" name="device" value="/dev/sdb"/>
     <nvpair id="fs-dir" name="directory" value="/mnt/shared"/>
     <nvpair id="fs-type" name="fstype" value="ocfs2"/>
   </instance_attributes>
     <operations>
       <op id="fs-check" name="monitor" interval="60s" timeout="30s"/>
     </operations>
   </primitive>
</clone>
</resources>
<constraints>
   <rsc_order id="ocfs2-order" first="o2cb-clone" then="fs-clone"  
score="INFINITY"/>
   <rsc_order id="o2cb-order" first="dlm-clone" then="o2cb-clone"  
score="INFINITY"/>
   <rsc_colocation id="ocfs2-coloc" with-rsc="o2cb-clone" rsc="fs- 
clone" score="INFINITY"/>
   <rsc_colocation id="o2cb-coloc" with-rsc="dlm-clone" rsc="o2cb- 
clone" score="INFINITY"/>
</constraints>
</configuration>