[Pacemaker] Multi State Resources
Dejan Muhamedagic
dejanmm at fastmail.fm
Tue Dec 30 09:30:02 EST 2008
Hi,
On Tue, Dec 30, 2008 at 11:56:56AM +0100, Adrian Chapela wrote:
> Dejan Muhamedagic escribi?:
>> On Tue, Dec 30, 2008 at 10:31:17AM +0100, Adrian Chapela wrote:
>>
>>> Dejan Muhamedagic escribi?:
>>>
>>>> On Tue, Dec 30, 2008 at 09:58:18AM +0100, Adrian Chapela wrote:
>>>>
>>>>> Dejan Muhamedagic escribi?:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> On Mon, Dec 29, 2008 at 01:13:33PM +0100, Adrian Chapela wrote:
>>>>>>
>>>>>>> Hello,
>>>>>>>
>>>>>>> I have one Multi State resource and I want to permit it to start on
>>>>>>> one node and then in the other.
>>>>>>>
>>>>>>> In normal situation we will have two nodes starting at same time.
>>>>>>> With constraints Heartbeat will decide the best node to run all
>>>>>>> resources.
>>>>>>>
>>>>>>> But in another situation, We could have only one node starting. At
>>>>>>> this moment we need to start all resources in this node.
>>>>>>>
>>>>>>> How can I permit this situation ?
>>>>>>>
>>>>>> What's there to permit? I suppose that in this case there will be
>>>>>> only the master instance of the resource running. Or did I
>>>>>> misunderstand your question?
>>>>>>
>>>>> No, You understood my question but I can't achieve that with my config
>>>>> file and I don't know why.
>>>>>
>>>>> Do you know some tip ?
>>>>>
>>>> Your config file looks fine to me. The location preference of 50
>>>> for node2 is not necessary. Also, did you check that the pingd
>>>> attribute is updated in the cib and that its value is >=1000?
>>>> Other than that, one can't say what's going on without looking at
>>>> the logs.
>>>>
>>> I thought about it. My first thought was pingd clone is not started, this
>>> could be the problem but It wasn't the problem. I updated this value to
>>> 5000 (the normal value in my configuration) manually and the master/slave
>>> resource didn't start. I thought in another problem.
>>>
>>> OK, I will send the logs. Which logs you need ? hbreport maybe ?
>>>
>>
>> hb_report would be the best.
>>
>
> OK, I have uploaded the hb_report.
node2 wants to fence node1 since startup-fencing is by default
true. All other actions are waiting for that. But node1 can't be
fenced, because there's no stonith resource which has it in its
hostlist. This is wrong:
<nvpair id="ssh-stonith-hostlist" name="hostlist" value="node1_backup node2_backup"/>
BTW, hope that you know that, it is also bad to use ssh stonith
unless testing.
Thanks,
Dejan
>>>> Thanks,
>>>>
>>>> Dejan
>>>>
>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Dejan
>>>>>>
>>>>>>
>>>>>>> I can't use globally-unique as an option of multi state. One option
>>>>>>> could be "ordered" ?
>>>>>>>
>>>>>>> I have attached my config file.
>>>>>>>
>>>>>>> Could you have a look ?
>>>>>>>
>>>>>>> Thank you!
>>>>>>>
>>>>>>
>>>>>>> <configuration>
>>>>>>> <crm_config>
>>>>>>> <cluster_property_set id="cib-bootstrap-options">
>>>>>>> <nvpair id="cib-bootstrap-options-dc-version" name="dc-version" value="1.0.1-node: b2e38c67d01ed1571259f74f51ee101bdcf54226"/>
>>>>>>> <nvpair id="cib-bootstrap-options-default-resource-failure-stickiness" name="default-resource-failure-stickiness" value="-INFINITY"/>
>>>>>>> <nvpair id="cib-bootstrap-options-default-resource-stickiness" name="default-resource-stickiness" value="INFINITY"/>
>>>>>>> <nvpair id="cib-bootstrap-options-stonith-action" name="stonith-action" value="poweroff"/>
>>>>>>> <nvpair id="cib-bootstrap-options-symmetric-cluster" name="symmetric-cluster" value="true"/>
>>>>>>> <nvpair id="cib-bootstrap-options-no-quorum-policy" name="no-quorum-policy" value="ignore"/>
>>>>>>> </cluster_property_set>
>>>>>>> </crm_config>
>>>>>>> <nodes>
>>>>>>> <node id="ea8af0a5-d8f2-41e7-a861-83236d53689f" uname="node1" type="normal"/>
>>>>>>> <node id="016a6a9d-898c-4606-aa59-00e64ecaab86" uname="node2" type="normal"/>
>>>>>>> </nodes>
>>>>>>> <resources>
>>>>>>> <master id="MySQL">
>>>>>>> <meta_attributes id="MySQL-meta">
>>>>>>> <nvpair id="MySQL-meta-1" name="clone_max" value="2"/>
>>>>>>> <nvpair id="MySQL-meta-2" name="clone_node_max" value="1"/>
>>>>>>> <nvpair id="MySQL-meta-3" name="master_max" value="1"/>
>>>>>>> <nvpair id="MySQL-meta-4" name="master_node_max" value="1"/>
>>>>>>> <nvpair id="MySQL-meta-6" name="globally-unique" value="false"/>
>>>>>>> </meta_attributes>
>>>>>>> <primitive id="MySQL-primitive" class="ocf" provider="heartbeat" type="mysql_slave_master">
>>>>>>> <operations>
>>>>>>> <op id="MySQL-op-1" name="start" interval="0s" timeout="300s"/>
>>>>>>> <op id="MySQL-op-2" name="stop" interval="0s" timeout="900s" on-fail="fence"/>
>>>>>>> <op id="MySQL-op-3" name="monitor" interval="59s" timeout="60s" role="Master" on-fail="fence"/>
>>>>>>> <op id="MySQL-op-4" name="monitor" interval="60s" timeout="60s" role="Slave" on-fail="fence"/>
>>>>>>> </operations>
>>>>>>> </primitive>
>>>>>>> </master>
>>>>>>> <group id="IP_Group">
>>>>>>> <primitive class="ocf" id="IPaddr-1" provider="heartbeat" type="IPaddr">
>>>>>>> <operations>
>>>>>>> <op id="IPaddr-1-op-monitor" interval="5s" name="monitor" timeout="5s"/>
>>>>>>> <op id="IPaddr-1-op-start" name="start" interval="0s" timeout="5s"/>
>>>>>>> <op id="IPaddr-1-op-stop" name="stop" interval="0s" timeout="5s"/>
>>>>>>> </operations>
>>>>>>> <instance_attributes id="IPaddr-1-ia">
>>>>>>> <nvpair id="IPaddr-1-IP" name="ip" value="192.168.18.24"/>
>>>>>>> <nvpair id="IPaddr-1-netmask" name="netmask" value="24"/>
>>>>>>> <nvpair id="IPaddr-1-gw" name="gw" value="192.168.18.254"/>
>>>>>>> <nvpair id="IPaddr-1-nic" name="nic" value="eth0"/>
>>>>>>> </instance_attributes>
>>>>>>> </primitive>
>>>>>>> </group>
>>>>>>> <clone id="pingd-clone">
>>>>>>> <primitive id="pingd" provider="heartbeat" class="ocf" type="pingd">
>>>>>>> <instance_attributes id="pingd-attrs">
>>>>>>> <nvpair id="pingd-dampen" name="dampen" value="5s"/>
>>>>>>> <nvpair id="pingd-multiplier" name="multiplier" value="1000"/>
>>>>>>> <nvpair id="pingd-hosts" name="host_list" value="192.168.18.210 192.168.18.254 192.168.18.253 192.168.18.200 192.168.18.201"/>
>>>>>>> </instance_attributes>
>>>>>>> <operations>
>>>>>>> <op id="pingd-clone-monitor" name="monitor" interval="5s" timeout="20s"/>
>>>>>>> <op id="pingd-clone-start" name="start" interval="0" timeout="20s"/>
>>>>>>> </operations>
>>>>>>> </primitive>
>>>>>>> </clone>
>>>>>>> <clone id="DoFencing">
>>>>>>> <meta_attributes id="DoFencing-meta">
>>>>>>> <nvpair id="DoFencing-meta-1" name="clone_max" value="2"/>
>>>>>>> <nvpair id="DoFencing-meta-2" name="clone_node_max" value="1"/>
>>>>>>> </meta_attributes>
>>>>>>> <primitive id="ssh-stonith" class="stonith" type="ssh">
>>>>>>> <instance_attributes id="ssh-stonith-attributes">
>>>>>>> <nvpair id="ssh-stonith-hostlist" name="hostlist" value="node1_backup node2_backup"/>
>>>>>>> </instance_attributes>
>>>>>>> <operations>
>>>>>>> <op id="DoFencing-monitor" name="monitor" interval="5s" timeout="20s"/>
>>>>>>> <op id="DoFencing-start" name="start" interval="0" timeout="20s"/>
>>>>>>> </operations>
>>>>>>> </primitive>
>>>>>>> </clone>
>>>>>>> </resources>
>>>>>>> <constraints>
>>>>>>> <rsc_order id="MySQL-IP_Group" first="MySQL" first-action="promote" then="IP_Group" then-action="start"/>
>>>>>>> <rsc_colocation id="IP_Group-with-MySQL" rsc="IP_Group" with-rsc="MySQL" with-rsc-role="Master" score="INFINITY"/>
>>>>>>> <rsc_location id="loca_MySQL_node1" rsc="MySQL">
>>>>>>> <rule id="rule_loc_MySQL_node1" role="Master" score="100">
>>>>>>> <expression id="exp_rule_MySQL_node1" attribute="#uname" operation="eq" value="node1"/>
>>>>>>> </rule>
>>>>>>> </rsc_location>
>>>>>>> <rsc_location id="loca_MySQL_node2" rsc="MySQL">
>>>>>>> <rule id="rule_loc_MySQL_node2" role="Master" score="50">
>>>>>>> <expression id="exp_rule_MySQL_node2" attribute="#uname" operation="eq" value="node2"/>
>>>>>>> </rule>
>>>>>>> </rsc_location>
>>>>>>> <rsc_location id="mysql-connectivity" rsc="MySQL">
>>>>>>> <rule id="mysql-pingd-prefer-rule" score="-INFINITY" role="Master">
>>>>>>> <expression id="mysql-pingd-prefer" attribute="pingd" operation="lt" value="1000"/>
>>>>>>> </rule>
>>>>>>> </rsc_location>
>>>>>>> </constraints>
>>>>>>> </configuration>
>>>>>>>
>>>>>>
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