Hi,
a question probably easy but I'm stuck on it by now.
I have Pacemaker installed from the RHEL62 repository, and I have some
resources that should be operating just if an external ping gateway answers
the ping request.
I performed a simplified configuration in order to test the following
behavior: if the ping gateway is not reached the other resource should shut
down (and swap on the other node). I also avoided to clone the resource in
the test configuration.
There are a couple of things I'm not able to understand.
1. MISSING PING GATEWAY NOT DETECTED. if I detach the network interface
leading to the gateway, I'd expect Pacemaker to get that. It doesn't happen;
furthermore, in the message log I get what follows:
Oct 16 11:29:34 SDGRMA lrmd: [29124]: info: perform_op:2884: operation
monitor[49] on ocf::ping::resource_ping_gateway for client 29127, its
parameters: CRM_meta_interval=[5000] host_list=[172.16.8.20]
name=[ping_gateway] dampen=[5s] crm_feature_set=[3.0.5]
CRM_meta_enabled=[true] CRM_meta_on_fail=[restart] CRM_meta_name=[monitor]
multiplier=[1000] CRM_meta_timeout=[20000] CRM_meta_requires=[nothing] for
rsc is already running.
Oct 16 11:29:34 SDGRMA lrmd: [29124]: info: perform_op:2894: postponing all
ops on resource resource_ping_gateway by 1000 ms
2. DIFFICULTY SETTING THE "DON'T RUN ON UNCONNECTED NODES" OPTION (example
9.3 in Pacemaker online docs). If I try to set this constraint, even if the
ping gateway is available the virtual ip stops (until the constraint is
removed). What's wrong?
crm configure log-active ping rule -inf: not_defined resource_ping_gateway
or resource_ping_gateway lte 0 (pls see cib down here)
I've read somewhere it is possible to use something like that to check the
pingd status
"crm_attribute -G -t status -N -n pingd"
But I can't find any "pingd" attribute in my cib.
-------
Any suggestion will be really appreciated.
Thanks a lot
G.
-------
TEST CIB
I set 2 resources: a ping gateway (still to clone) and a virtual IP.
<cib epoch="82" num_updates="0" admin_epoch="0"
validate-with="pacemaker-1.2" crm_feature_set="3.0.5" update-origin="SDGRMA"
update-client="cibadmin" cib-last-written="Mon Oct 15 18:47:45 2012"
have-quorum="1" dc-uuid="SDGRMA">
<configuration>
<crm_config>
<cluster_property_set id="cib-bootstrap-options">
<nvpair id="cib-bootstrap-options-dc-version" name="dc-version"
value="1.1.6-3.el6-a02c0f19a00c1eb2527ad38f146ebc0834814558"/>
<nvpair id="cib-bootstrap-options-cluster-infrastructure"
name="cluster-infrastructure" value="openais"/>
<nvpair id="cib-bootstrap-options-expected-quorum-votes"
name="expected-quorum-votes" value="2"/>
<nvpair id="cib-bootstrap-options-no-quorum-policy"
name="no-quorum-policy" value="ignore"/>
<nvpair id="cib-bootstrap-options-symmetric-cluster"
name="symmetric-cluster" value="false"/>
<nvpair id="cib-bootstrap-options-stonith-enabled"
name="stonith-enabled" value="false"/>
<nvpair id="cib-bootstrap-options-start-failure-is-fatal"
name="start-failure-is-fatal" value="false"/>
</cluster_property_set>
</crm_config>
<nodes>
<node id="SDGRMA" type="normal" uname="SDGRMA"/>
<node id="SDGRMB" type="normal" uname="SDGRMB"/>
</nodes>
<resources>
<primitive class="ocf" id="resource_ping_gateway" provider="pacemaker"
type="ping">
<instance_attributes id="resource_ping_gateway-instance_attributes">
<nvpair id="resource_ping_gateway-instance_attributes-host_list"
name="host_list" value="172.16.8.20"/>
<nvpair id="resource_ping_gateway-instance_attributes-dampen"
name="dampen" value="5s"/>
<nvpair id="resource_ping_gateway-instance_attributes-multiplier"
name="multiplier" value="1000"/>
<nvpair id="resource_ping_gateway-instance_attributes-name"
name="name" value="ping_gateway"/>
</instance_attributes>
<operations>
<op enabled="true" id="resource_ping_gateway-startup"
interval="5s" name="monitor" on-fail="restart" requires="nothing"
timeout="20s"/>
<op id="resource_ping_gateway-start-0" interval="0" name="start"
timeout="180s"/>
<op id="resource_ping_gateway-stop-0" interval="0" name="stop"
timeout="180s"/>
</operations>
<meta_attributes id="resource_ping_gateway-meta_attributes">
<nvpair id="resource_ping_gateway-meta_attributes-target-role"
name="target-role" value="Started"/>
</meta_attributes>
</primitive>
<primitive class="ocf" id="resource_vrt_ip" provider="heartbeat"
type="IPaddr2">
<instance_attributes id="resource_vrt_ip-instance_attributes">
<nvpair id="resource_vrt_ip-instance_attributes-ip" name="ip"
value="192.168.15.73"/>
<nvpair id="resource_vrt_ip-instance_attributes-nic" name="nic"
value="bond0"/>
</instance_attributes>
<meta_attributes id="resource_vrt_ip-meta_attributes">
<nvpair id="resource_vrt_ip-meta_attributes-target-role"
name="target-role" value="Started"/>
<nvpair id="resource_vrt_ip-meta_attributes-multiple-active"
name="multiple-active" value="stop_start"/>
<nvpair id="resource_vrt_ip-meta_attributes-migration-threshold"
name="migration-threshold" value="3"/>
<nvpair id="resource_vrt_ip-meta_attributes-failure-timeout"
name="failure-timeout" value="0"/>
</meta_attributes>
<operations>
<op enabled="true" id="resource_vrt_ip-startup" interval="60"
name="monitor" on-fail="restart" requires="nothing" timeout="180s"/>
<op id="resource_vrt_ip-start-0" interval="0" name="start"
timeout="180s"/>
<op id="resource_vrt_ip-stop-0" interval="0" name="stop"
timeout="180s"/>
</operations>
</primitive>
</resources>
<constraints>
<rsc_location id="loc-1a" node="SDGRMA" rsc="resource_ping_gateway"
score="200"/>
<rsc_location id="loc-1b" node="SDGRMB" rsc="resource_ping_gateway"
score="0"/>
<rsc_location id="loc-2a" node="SDGRMA" rsc="resource_vrt_ip"
score="200"/>
<rsc_location id="loc-2b" node="SDGRMB" rsc="resource_vrt_ip"
score="0"/>
</constraints>
</configuration>
</cib>
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