On Nov 8, 2007, at 9:39 PM, Anders Brownworth wrote:
Hi,
I have a working linux-ha v2 setup managing 2 production IPs with a
service (OpenSER) using those IPs. The service is shared amongst two
servers (box01 and box02) in an active / standby configuration.
OpenSER and the production IPs prefer to run on box01 but will
migrate to box02 in the event of a box01 failure. All of this works
as expected.
However, when OpenSER is running on the backup box (box02) and the
primary (box01) becomes available, the backup box releases the IPs
as expected but never shuts OpenSER down.
The only way I can think that might happen is if either:
- the cluster didn't think it was running in the first place
- the OpenSER RA ignored the stop command
Either way it would be the fault of the RA.
Have you tested it with ocf-tester ?
(Ok, yes it's possible there is a bug in the crm but this particular
behavior is pretty solid.)
If you attach logs from the event and we'll know for sure.
OpenSER is then running on both the primary and the backup box,
although of course the backup box never gets any requests because
the production IPs are gone. It makes for a confusing environment
though when you see the OpenSER processes running on the backup but
there seems to be no traffic.
Am I wrong to expect that a service should be shut down when moving
away from a server? Clearly IPaddr2 yanks the production IPs away...
In the constraints I score OpenSER to 100 so it prefers to live on
box01. I also tie IPAddr2 and OpenSER together at a score of
INFINITY so they stay together. I'm assuming this is the correct way
to keep IP and service together and have the service prefer box01.
Perhaps my implementation isn't stating what I am wanting to do?
Below is my cib.xml. Any insight is greatly appreciated.
-Anders
<cib admin_epoch="1" have_quorum="true" num_peers="1"
cib_feature_revision="1.3" ignore_dtd="false" generated="true"
epoch="15" num_updates="367" cib-last-written="Thu Nov 8 19:08:20
2007" ccm_transition="1" dc_uuid="9052abe5-87ee-4400-a008-
c5f13205e94b">
<configuration>
<crm_config>
<cluster_property_set id="cluster-property-set">
<attributes>
<nvpair id="short_resource_names"
name="short_resource_names" value="true"/>
<nvpair id="pe-input-series-max" name="pe-input-series-max"
value="-1"/>
</attributes>
</cluster_property_set>
</crm_config>
<nodes>
<node id="9052abe5-87ee-4400-a008-c5f13205e94b" uname="box01"
type="normal"/>
<node id="47658455-4da2-48d4-a8da-419b2f93f039" uname="box02"
type="normal"/>
</nodes>
<resources>
<group id="OpenSer_IPaddr2_group">
<primitive id="IPaddr2-10.1.53.235" class="ocf"
type="IPaddr2" provider="heartbeat">
<operations>
<op id="ipaddr2-10.1.53.235-monitor" name="monitor"
interval="5s" timeout="3s"/>
</operations>
<instance_attributes id="IPaddr2-10.1.53.235-attributes">
<attributes>
<nvpair id="ipaddr2-10.1.53.235-ip" name="ip"
value="10.1.53.235"/>
<nvpair id="ipaddr2-10.1.53.235-broadcast"
name="broadcast" value="10.1.53.255"/>
<nvpair id="ipaddr2-10.1.53.235-cidr_netmask"
name="cidr_netmask" value="24"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="IPaddr2-10.1.53.236" class="ocf"
type="IPaddr2" provider="heartbeat">
<operations>
<op id="ipaddr2-10.1.53.236-monitor" name="monitor"
interval="5s" timeout="3s"/>
</operations>
<instance_attributes id="IPaddr2-10.1.53.236-attributes">
<attributes>
<nvpair id="ipaddr2-10.1.53.236-ip" name="ip"
value="10.1.53.236"/>
<nvpair id="ipaddr2-10.1.53.236-broadcast"
name="broadcast" value="10.1.53.255"/>
<nvpair id="ipaddr2-10.1.53.236-cidr_netmask"
name="cidr_netmask" value="24"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="OpenSer" class="ocf" type="OpenSer"
provider="bandwidth.com">
<operations>
<op id="openser-start" name="start" timeout="5s"/>
<op id="openser-stop" name="stop" timeout="3s"/>
<op id="openser-monitor" name="monitor" interval="10s"
timeout="3s">
<instance_attributes id="monitor_10s">
<attributes>
<nvpair id="openser-monitor-ip" name="ip"
value="127.0.0.1"/>
</attributes>
</instance_attributes>
</op>
</operations>
</primitive>
</group>
</resources>
<constraints>
<rsc_location id="IPaddr2_resource_location" rsc="IPaddr2">
<rule id="IPaddr2_rule" score="100">
<expression id="expression_1" attribute="#uname"
operation="eq" value="box01"/>
</rule>
</rsc_location>
<rsc_colocation id="same_openser_ip" from="IPaddr2"
to="OpenSer" score="INFINITY"/>
</constraints>
</configuration>
</cib>
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_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
