3.3. Querying and Setting Cluster Options
Cluster options can be queried and modified using the crm_attribute tool. To get the current value of cluster-delay, simply use:
# crm_attribute --query --name cluster-delay
which is more simply written as
# crm_attribute -G -n cluster-delay
If a value is found, you’ll see a result like this:
# crm_attribute -G -n cluster-delay
scope=crm_config name=cluster-delay value=60s
However, if no value is found, the tool will display an error:
# crm_attribute -G -n clusta-deway
scope=crm_config name=clusta-deway value=(null)
Error performing operation: No such device or address
To use a different value, eg. 30, simply run:
# crm_attribute --name cluster-delay --update 30s
To go back to the cluster’s default value you can delete the value, for example with this command:
# crm_attribute --name cluster-delay --delete
Deleted crm_config option: id=cib-bootstrap-options-cluster-delay name=cluster-delay
