[Pacemaker] (no subject)
Shravan Mishra
shravan.mishra at gmail.com
Thu Jan 21 12:35:00 EST 2010
Thanks Martin, I was able to solve my problem using ptest.
Awesome tool for debugging scores and fine tunning the behavior of your cluster.
Sincerely
Shravan
On Thu, Jan 21, 2010 at 4:02 AM, Martin Gombač <martin at isg.si> wrote:
> Increase default-resource-stickiness in the bootstrap part of config
> (property).
> Check with ptest -sL the scores to confirm, test and get the correct values.
> Also for most humans it's easier to read outout of crm configure show
> instead of XML, so i didn't read your config.
>
> Regards,
> M.
>
> Shravan Mishra wrote:
>>
>> Hi all,
>>
>> I have an active-passive 2 node cluster.
>> Whenever the active/primary node is powered off the services nicely
>> failover and continue but once the powered off node is brought back
>> online, instead of staying as secondary/passive node it is again
>> becoming primary thus leading to a unnecessary failover kind of
>> scenario.
>>
>> My question is what kind of constraints can I specify to have my
>> resources stick to the node where they are currently running and not
>> jump around.
>>
>>
>>
>> Please let me know if its possible.
>>
>>
>> Following is the config that I'm running:
>>
>> ==========
>> <cib epoch="98" admin_epoch="0" validate-with="pacemaker-1.0"
>> crm_feature_set="3.0.1" have-quorum="1"
>> dc-uuid="qa2.e-lab.itactics.com" num_updates="49">
>> <configuration>
>> <crm_config>
>> <cluster_property_set id="cib-bootstrap-options">
>> <nvpair id="cib-bootstrap-options-dc-version"
>> name="dc-version"
>> value="1.0.5-9e9faaab40f3f97e3c0d623e4a4c47ed83fa1601"/>
>> <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="true"/>
>> <nvpair id="cib-bootstrap-options-stonith-action"
>> name="stonith-action" value="reboot"/>
>> <nvpair id="cib-bootstrap-options-stonith-enabled"
>> name="stonith-enabled" value="true"/>
>> <nvpair id="cib-bootstrap-options-dc-deadtime"
>> name="dc-deadtime" value="3min"/>
>> </cluster_property_set>
>> </crm_config>
>> <nodes>
>> <node id="qa2.e-lab.itactics.com" uname="qa2.e-lab.itactics.com"
>> type="normal">
>> <instance_attributes id="nodes-qa2.e-lab.itactics.com">
>> <nvpair id="nodes-qa2.e-lab.itactics.com-standby"
>> name="standby" value="off"/>
>> </instance_attributes>
>> </node>
>> <node id="qa1.e-lab.itactics.com" uname="qa1.e-lab.itactics.com"
>> type="normal">
>> <instance_attributes id="nodes-qa1.e-lab.itactics.com">
>> <nvpair id="nodes-qa1.e-lab.itactics.com-standby"
>> name="standby" value="off"/>
>> </instance_attributes>
>> </node>
>> </nodes>
>> <resources>
>> <clone id="connectivity">
>> <primitive id="ping" provider="pacemaker" class="ocf" type="pingd">
>> <instance_attributes id="ping-attrs">
>> <nvpair id="pingd-role" name="target-role" value="started"/>
>> <nvpair id="pingd-dampen" name="dampen" value="5s"/>
>> <nvpair id="pingd-multiplier" name="multiplier" value="1000"/>
>> <nvpair id="pingd-hosts" name="host_list" value="172.30.0.1"/>
>> </instance_attributes>
>> <operations>
>> <op id="ping-monitor-60s" interval="60s" timeout="2min"
>> name="monitor"/>
>> </operations>
>> </primitive>
>> </clone>
>> <master id="ms-drbd">
>> <meta_attributes id="ma-ms-drbd">
>> <nvpair id="ma-ms-drbd-1" name="clone_max" value="2"/>
>> <nvpair id="ma-ms-drbd-2" name="clone-node-max" value="1"/>
>> <nvpair id="ma-ms-drbd-3" name="notify" value="yes"/>
>> <nvpair id="ma-ms-drbd-4" name="globally-unique" value="false"/>
>> <nvpair id="ma-ms-drbd-5" name="master-max" value="1"/>
>> <nvpair id="ma-ms-drbd-6" name="master-node-max" value="1"/>
>> <nvpair id="ma-ms-drbd-7" name="target-role" value="started"/>
>> </meta_attributes>
>> <primitive id="drbd0" class="ocf" provider="linbit" type="drbd">
>> <instance_attributes id="ia-drbd">
>> <nvpair id="ia-drbd-1" name="drbd_resource" value="var_nsm"/>
>> </instance_attributes>
>> <operations>
>> <op id="op-drbd-1" name="monitor" interval="59s"
>> timeout="10s" role="Master"/>
>> <op name="start" interval="0" id="op-drbd-2"
>> timeout="3min" role="Master"/>
>> <op name="stop" interval="0" id="op-drbd-3" timeout="3min"
>> role="Master"/>
>> <op id="op-drbd-4" name="monitor" interval="60s"
>> timeout="10s" role="Slave"/>
>> <op id="op-drbd-5" name="start" interval="0"
>> timeout="3min" role="Slave"/>
>> <op id="op-drbd-6" name="stop" interval="0" timeout="3min"
>> role="Slave"/>
>> </operations>
>> </primitive>
>> </master>
>> <primitive class="stonith" type="external/safe/ipmi"
>> id="qa1.e-lab.itactics.com-stonith">
>> <operations>
>> <op id="op-qa1.e-lab.itactics.com-stonith-1" name="monitor"
>> timeout="3min" interval="20s"/>
>> </operations>
>> <instance_attributes id="qa1.e-lab.itactics.com-attributes">
>> <nvpair id="ia-qa1.e-lab.itactics.com-stonith-0"
>> name="target_role" value="started"/>
>> <nvpair id="ia-qa1.e-lab.itactics.com-stonith-1"
>> name="hostname" value="qa1.e-lab.itactics.com"/>
>> <nvpair name="ipaddr"
>> id="ia-qa1.e-lab.itactics.com-stonith-2" value="192.168.2.7"/>
>> </instance_attributes>
>> </primitive>
>> <primitive class="stonith" type="external/safe/ipmi"
>> id="qa2.e-lab.itactics.com-stonith">
>> <operations>
>> <op id="op-qa2.e-lab.itactics.com-stonith-1" name="monitor"
>> timeout="2min" interval="20s"/>
>> </operations>
>> <instance_attributes id="qa2.e-lab.itactics.com-attributes">
>> <nvpair id="ia-qa2.e-lab.itactics.com-stonith-0"
>> name="target_role" value="started"/>
>> <nvpair id="ia-qa2.e-lab.itactics.com-stonith-1"
>> name="hostname" value="qa2.e-lab.itactics.com"/>
>> <nvpair name="ipaddr"
>> id="ia-qa2.e-lab.itactics.com-stonith-2" value="192.168.2.8"/>
>> </instance_attributes>
>> </primitive>
>> <group id="svcs_grp">
>> <meta_attributes id="ma-svcs">
>> <nvpair id="ma-svcs-1" name="target_role" value="started"/>
>> </meta_attributes>
>> <primitive class="ocf" provider="heartbeat" type="Filesystem"
>> id="fs0">
>> <meta_attributes id="ma-fs0">
>> <nvpair name="target_role" id="ma-fs0-1" value="stopped"/>
>> </meta_attributes>
>> <instance_attributes id="ia-fs0">
>> <nvpair id="ia-fs0-1" name="fstype" value="xfs"/>
>> <nvpair id="ia-fs0-2" name="directory" value="/var/nsm"/>
>> <nvpair id="ia-fs0-3" name="device" value="/dev/drbd1"/>
>> </instance_attributes>
>> <operations>
>> <op name="start" interval="0" id="op-fs0-1" timeout="5min"/>
>> <op interval="0" id="op-fs0-2" name="stop" timeout="5min"/>
>> <op id="op-fs0-3" name="monitor" timeout="3min"
>> interval="20s"/>
>> </operations>
>> </primitive>
>> <primitive id="vip" class="ocf" type="IPaddr2"
>> provider="heartbeat">
>> <operations>
>> <op id="op-vip-1" name="monitor" timeout="2min"
>> interval="20s"/>
>> <op id="op-vip-2" name="start" timeout="4min" interval="0"/>
>> <op id="op-vip-3" name="stop" timeout="4min" interval="0"/>
>> </operations>
>> <instance_attributes id="ia-vip">
>> <nvpair id="vip-addr" name="ip" value="172.30.0.18"/>
>> </instance_attributes>
>> </primitive>
>> <primitive class="ocf" type="safe" provider="itactics"
>> id="safe_svcs">
>> <operations>
>> <op name="start" interval="0" id="op-safe-1" timeout="30min"/>
>> <op interval="0" id="op-safe-2" name="stop" timeout="1440min"/>
>> <op id="op-safe-3" name="monitor" timeout="30min"
>> interval="20s"/>
>> </operations>
>> <instance_attributes id="ia-safe">
>> <nvpair id="ia-safe-1" name="target-role" value="started"/>
>> <nvpair id="ia-safe-2" name="is-managed" value="true"/>
>> <nvpair id="ia-safe-3" name="migration-threshold" value="2"/>
>> </instance_attributes>
>> </primitive>
>> </group>
>> </resources>
>> <constraints>
>> <rsc_location id="qa1.e-lab.itactics.com-stonith-placement"
>> rsc="qa1.e-lab.itactics.com-stonith">
>> <rule id="ri-qa1.e-lab.itactics.com-stonith-placement-1"
>> score="-INFINITY">
>> <expression
>> id="ex-qa1.e-lab.itactics.com-stonith-placement-1"
>> value="qa1.e-lab.itactics.com" attribute="#uname" operation="eq"/>
>> </rule>
>> </rsc_location>
>> <rsc_location id="qa2.e-lab.itactics.com-stonith-placement"
>> rsc="qa2.e-lab.itactics.com-stonith">
>> <rule id="ri-qa2.e-lab.itactics.com-stonith-placement-1"
>> score="-INFINITY">
>> <expression
>> id="ex-qa2.e-lab.itactics.com-stonith-placement-1"
>> value="qa2.e-lab.itactics.com" attribute="#uname" operation="eq"/>
>> </rule>
>> </rsc_location>
>> <rsc_location id="drbd-master" rsc="ms-drbd">
>> <rule id="ping-exclude-rule" score="-INFINITY" role="master">
>> <expression id="ping-exclude" attribute="pingd"
>> operation="lt" value="1000"/>
>> </rule>
>> <rule id="ping-prefer-rule" score-attribute="pingd" role="master">
>> <expression id="ping-prefer" attribute="pingd"
>> operation="defined"/>
>> </rule>
>> </rsc_location>
>> <rsc_order first="ms-drbd" first-action="promote"
>> id="ms-drbd-before-svcs-group" score="INFINITY" then="svcs_grp"
>> then-action="start"/>
>> </constraints>
>> <rsc_defaults>
>> <meta_attributes id="rsc_defaults-options">
>> <nvpair id="resource-stickiness" name="resource-stickiness"
>> value="1000"/>
>> </meta_attributes>
>> </rsc_defaults>
>> </configuration>
>> </cib>
>>
>> ==========
>>
>>
>>
>> Thanks
>>
>> Shravan
>>
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>>
>
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