3.3. Configuring general HA cluster properties

To avoid unnecessary failovers of the resources, the following default values for the resource-stickiness and migration-threshold parameters must be set (this only needs to be done on one node):

[root]# pcs resource defaults update resource-stickiness=1000
[root]# pcs resource defaults update migration-threshold=5000

resource-stickiness=1000 will encourage the resource to stay running where it is, while migration-threshold=5000 will cause the resource to move to a new node only after 5000 failures. 5000 is generally sufficient to prevent the resource from prematurely failing over to another node. This also ensures that the resource failover time stays within a controllable limit.