>
> Rodrigo Pereira wrote:
> > Hi,
> >
> > I have a running cluster, with a couple of Xen VM's on top of DRBD.
> >
> > I have colocation constraints for each Xen VM resource so they only
> > start where the DRBD fs is mounted. Something like:
> >
> > <rsc_colocation id="vm1_on_fs0" from="vm1" to="fs0"
> score="INFINITY"/>
> >
> > I created another Xen VM, and tried to add it to the
> cluster. I have
> > all resources on one xml file and all constraints on
> another. I then
> > use cib_admin to update each (i update constraints before
> resources).
> >
> > I thought it would respect the colocation constraint, but what i've
> > found is that this resulted on this new VM trying to start on the
> > second (DRBD
> > secondary) node, not the one where fs0 is mounted. So it
> fails startup
> > and stays unmanaged.
> >
> > Why would this happen, any hints?
> >
> > thank you,
> > rodrigo
>
> can you please provide
>
> 1) your two xml files
> 2) the _exact_ command(s) you use to update the running cib.xml
>
> moreover, why do you keep the resources and constraints seperately?
>
The files follow below.
I used:
# cibadmin -o constraints -R -x constraints.xml
# cibadmin -o resources -R -x resources.xml
I've then removed the resource and constraint (either on the GUI or using
cibadmin -D), created a file with only the new resource and add it with
cibadmin -C. I create with target_role "stopped", but it will always start
anyway on the secondary node.
I have no great reason to keep them separate, it just seemed tidy when i
started this setup.
The new resource is "vm-smb1". The rest of the cluster is up and running.
#### CONSTRAINTS #####
<constraints>
<!-- LOCATIONS -->
<rsc_location id="mail0-prefnode" rsc="mail0">
<rule id="r1-mail0-prefnode" score="100">
<expression attribute="#uname" id="e1-r1-mail0-prefnode"
operation="eq" value="node1"/>
</rule>
</rsc_location>
<rsc_location id="ms-drbd0-prefnode" rsc="ms-drbd0">
<rule id="r1-drbd0-prefnode" score="100" boolean_op="and" role="master">
<expression attribute="#uname" id="e1-ms-drbd0-prefnode"
operation="eq" value="node1"/>
</rule>
</rsc_location>
<!-- COLOCATIONS -->
<rsc_colocation id="fs0_on_drbd0" from="fs0" to="ms-drbd0"
to_role="master" score="INFINITY"/>
<rsc_colocation id="vm-svc1_on_fs0" from="vm-svc1" to="fs0"
score="INFINITY"/>
<rsc_colocation id="vm-ebx1_on_fs0" from="vm-ebx1" to="fs0"
score="INFINITY"/>
<rsc_colocation id="vm-smb1_on_fs0" from="vm-smb1" to="fs0"
score="INFINITY"/>
<!-- ORDERING -->
<rsc_order id="fs0_after_drbd0" from="fs0" to="ms-drbd0"
to_action="promote" action="start"/>
<rsc_order id="vm-svc1_after_fs0" from="vm-svc1" action="start"
type="after" to="fs0"/>
<rsc_order id="vm-ebx1_after_fs0" from="vm-ebx1" action="start"
type="after" to="fs0"/>
<rsc_order id="vm-smb1_after_fs0" from="vm-smb1" action="start"
type="after" to="fs0"/>
</constraints>
#### RESOURCES #####
<resources>
<!-- MAIL NOTIFICATIONS -->
<primitive id="mail0" type="MailTo" class="ocf" provider="heartbeat">
<instance_attributes id="ia-mail0">
<attributes
<nvpair id="ia-mail0-1" name="email" value="[EMAIL PROTECTED]"/>
<nvpair id="ia-mail0-2" name="subject" value="MY_CLUSTER"/>
</attributes>
</instance_attributes>
</primitive>
<!-- DRBD MASTER-SLAVE DEFINITION -->
<master_slave id="ms-drbd0">
<meta_attributes id="ma-ms-drbd0">
<attributes>
<nvpair id="ma-ms-drbd0-1" name="clone_max" value="2"/>
<nvpair id="ma-ms-drbd0-2" name="clone_node_max" value="1"/>
<nvpair id="ma-ms-drbd0-3" name="master_max" value="1"/>
<nvpair id="ma-ms-drbd0-4" name="master_node_max" value="1"/>
<nvpair id="ma-ms-drbd0-5" name="notify" value="yes"/>
<nvpair id="ma-ms-drbd0-6" name="globally_unique" value="false"/>
<nvpair id="ma-ms-drbd0-7" name="target_role" value="started"/>
</attributes>
</meta_attributes>
<primitive id="drbd0" class="ocf" provider="heartbeat" type="drbd">
<instance_attributes id="ia-drbd0">
<attributes>
<nvpair id="ia-drbd0-1" name="drbd_resource" value="drbd0"/>
</attributes>
</instance_attributes>
</primitive>
</master_slave>
<!-- EXT3 FILESYSTEM ON TOP OF DRBD DEVICE -->
<!-- CONTAINS XEN IMAGES -->
<primitive id="fs0" type="Filesystem" class="ocf" provider="heartbeat">
<meta_attributes id="ma-fs0">
<attributes>
<!-- <nvpair id="ma-fs0-1" name="target_role" value="started"/> -->
</attributes>
</meta_attributes>
<instance_attributes id="ia-fs0">
<attributes>
<nvpair id="ia-fs0-1" name="fstype" value="ext3"/>
<nvpair id="ia-fs0-2" name="directory" value="/drbd0"/>
<nvpair id="ia-fs0-3" name="device" value="/dev/drbd0"/>
<nvpair id="ia-fs0-4" name="target_role" value="started"/>
</attributes>
</instance_attributes>
</primitive>
<!-- XEN VM SERVICES INSTANCE 1 -->
<!-- STANDARD PARA-VIRTUAL -->
<primitive id="vm-svc1" class="ocf" type="Xen" provider="heartbeat">
<operations>
<op id="op-vm-svc1-1" name="monitor" interval="10s" timeout="120s"
prereq="nothing"/>
<op id="op-vm-svc1-2" name="start" timeout="60s" start_delay="0"/>
<op id="op-vm-svc1-3" name="stop" timeout="300s"/>
</operations>
<instance_attributes id="ia-vm-svc1">
<attributes>
<nvpair id="ia-vm-svc1-1" name="xmfile"
value="/etc/xen/vm/vm-svc1"/>
<nvpair id="ia-vm-svc1-2" name="target_role" value="started"/>
</attributes>
</instance_attributes>
<meta_attributes id="ma-vm-svc1">
<attributes>
<nvpair id="ma-vm-svc1-1" name="allow_migrate" value="false"/>
</attributes>
</meta_attributes>
</primitive>
<!-- XEN HVM INSTANCE 1 -->
<primitive id="vm-ebx1" class="ocf" type="Xen" provider="heartbeat">
<operations>
<op id="op-vm-ebx1-1" name="monitor" interval="10s" timeout="120s"
prereq="nothing"/>
<op id="op-vm-ebx1-2" name="start" timeout="60s" start_delay="0"/>
<op id="op-vm-ebx1-3" name="stop" timeout="300s"/>
</operations>
<instance_attributes id="ia-vm-ebx1">
<attributes>
<nvpair id="ia-vm-ebx1-1" name="xmfile"
value="/etc/xen/vm/vm-ebx1"/>
<nvpair id="ia-vm-ebx1-2" name="target_role" value="started"/>
</attributes>
</instance_attributes>
<meta_attributes id="ma-vm-ebx1">
<attributes>
<nvpair id="ma-vm-ebx1-1" name="allow_migrate" value="false"/>
</attributes>
</meta_attributes>
</primitive>
<!-- XEN VM SAMBA INSTANCE 1 -->
<!-- STANDARD PARA-VIRTUAL -->
<primitive id="vm-smb1" class="ocf" type="Xen" provider="heartbeat">
<operations>
<op id="op-vm-smb1-1" name="monitor" interval="10s" timeout="120s"
prereq="nothing"/>
<op id="op-vm-smb1-2" name="start" timeout="60s" start_delay="0"/>
<op id="op-vm-smb1-3" name="stop" timeout="300s"/>
</operations>
<instance_attributes id="ia-vm-smb1">
<attributes>
<nvpair id="ia-vm-smb1-1" name="xmfile"
value="/etc/xen/vm/vm-smb1"/>
<nvpair id="ia-vm-smb1-2" name="target_role" value="stopped"/>
</attributes>
</instance_attributes>
<meta_attributes id="ma-vm-smb1">
<attributes>
<nvpair id="ma-vm-smb1-1" name="allow_migrate" value="false"/>
</attributes>
</meta_attributes>
</primitive>
</resources>
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