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6.9. Multiple Monitoring Operations
You can configure a single resource with as many monitor operations as a resource agent supports. In this way you can do a superficial health check every minute and progressively more intense ones at higher intervals.
Note
When configuring multiple monitor operations, you must ensure that no two operations are performed at the same interval.
To configure additional monitoring operations for a resource that supports more in-depth checks at different levels, you add an
OCF_CHECK_LEVEL=n option.
For example, if you configure the following
IPaddr2 resource, by default this creates a monitoring operation with an interval of 10 seconds and a timeout value of 20 seconds.
# pcs resource create VirtualIP ocf:heartbeat:IPaddr2 ip=192.168.0.99 cidr_netmask=24 nic=eth2
If the Virtual IP supports a different check with a depth of 10, the following command causes Pacemaker to perform the more advanced monitoring check every 60 seconds in addition to the normal Virtual IP check every 10 seconds. (As noted, you should not configure the additional monitoring operation with a 10-second interval as well.)
# pcs resource op add VirtualIP monitor interval=60s OCF_CHECK_LEVEL=10