[Pacemaker] (no subject)
Martin Gombač
martin at isg.si
Thu Jan 21 04:02:38 EST 2010
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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