Just curious: I suppose its my first constraint that does this job?
second - the colocation one
Okay thanks - so sure I even got the 50/50 wrong :p
Then I must ask another question: Why does this not apply to colocated
primitives?
I just tested with a single primitive (testdb) colocated to the master
role of ms-drbd2:
drbd2:0 node1 0
drbd2:0 node2 76
drbd2:1 node1 76
drbd2:1 node2 -infin
testdb node1 0
testdb node2 500
<resources>
<master_slave id="ms-drbd2">
<meta_attributes id="ma-ms-drbd2">
<attributes>
<nvpair id="ma-ms-drbd2-1"
name="clone_max" value="2"/>
<nvpair id="ma-ms-drbd2-2"
name="clone_node_max" value="1"/>
<nvpair id="ma-ms-drbd2-3"
name="master_max" value="1"/>
<nvpair id="ma-ms-drbd2-4"
name="master_node_max" value="1"/>
<nvpair id="ma-ms-drbd2-5"
name="notify" value="yes"/>
<nvpair id="ma-ms-drbd2-6"
name="globally_unique" value="false"/>
<nvpair id="ma-ms-drbd2-7"
name="target_role" value="started"/>
</attributes>
</meta_attributes>
<primitive id="drbd2" class="ocf" provider="heartbeat"
type="drbd">
<instance_attributes id="ia-drbd2">
<attributes>
<nvpair id="ia-drbd2-1"
name="drbd_resource" value="drbd2"/>
</attributes>
</instance_attributes>
<operations>
<op id="op-ms-drbd2-1" name="monitor"
interval="5s" timeout="5s" start_delay="30s" role="Master"/>
<op id="op-ms-drbd2-2" name="monitor"
interval="6s" timeout="5s" start_delay="30s" role="Slave"/>
</operations>
</primitive>
</master_slave>
<primitive id="testdb" class="ocf" type="filesystem"
provider="heartbeat">
<instance_attributes id="ia-mount">
<attributes>
<nvpair id="ia-mount-1"
name="device" value="/dev/drbd2"/>
<nvpair id="ia-mount-2"
name="directory" value="/packages/postgres/data/"/>
<nvpair id="ia-mount-3"
name="fstype" value="ext3"/>
</attributes>
</instance_attributes>
<operations>
<op id="op-mount-1" name="monitor"
interval="5s" timeout="5s" start_delay="30s" role="Started"/>
</operations>
</primitive>
</resources>
<constraints>
<rsc_order id="drbd2_before_testdb" from="testdb"
action="start" to="ms-drbd2" to_action="promote"/>
<rsc_colocation id="testdb_on_drbd2" to="ms-drbd2"
to_role="master" from="testdb" score="300"/>
</constraints>
</configuration>
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