[Pacemaker] Resource-Monitoring with an "On Fail"-Action

[Tom Tux]

Thanks for your hint.

I've configured an lsb-resource like this (with migration-threshold):

primitive MySQL_MonitorAgent_Resource lsb:mysql-monitor-agent \
        meta target-role="Started" migration-threshold="3" \
        op monitor interval="10s" timeout="20s" on-fail="restart"

I have now modified the init-script "/etc/init.d/mysql-monitor-agent",
to exit with a returncode not equal "0" (example exit 99), when the
monitor-operation is querying the status. But the cluster does not
recognise a failed monitor-action. Why this behaviour? For the
cluster, everything seems ok.

node1:/ # showcores.sh MySQL_MonitorAgent_Resource
Resource                             Score     Node     Stickiness
#Fail    Migration-Threshold
MySQL_MonitorAgent_Resource          -1000000  node1 100        0        3
MySQL_MonitorAgent_Resource          100       node2 100        0        3

I also saw, that the "last-run"-entry (crm_mon -fort1) for this
resource is not up-to-date. For me it seems, that the monitor-action
does not occurs every 10 seconds. Why? Any hints for this behaviour?

Thanks a lot.
Tom


2010/3/16 Dominik Klein <dk at in-telegence.net>:
> Tom Tux wrote:
>> Hi
>>
>> I've have a question about the resource-monitoring:
>> I'm monitoring an ip-resource every 20 seconds. I have configured the
>> "On Fail"-action with "restart". This works fine. If the
>> "monitor"-operation fails, then the resource will be restartet.
>>
>> But how can I define this resource, to migrate to the other node, if
>> the resource still fails after 10 restarts? Is this possible? How will
>> the "failcount" interact with this scenario?
>>
>> In the documentation I read, that the resource-"fail_count" will
>> encrease every time, when the resource restarts. But I can't see this
>> fail_count.
>
> Look at the meta attribute "migration-threshold".
>
> Regards
> Dominik
>
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