Product SiteDocumentation Site

3.4. Fields Maintained by the Cluster

Table 3.3. Properties Maintained by the Cluster

Field Description
cib-last-written
Indicates when the configuration was last written to disk. Informational purposes only.
dc-uuid
Indicates which cluster node is the current leader. Used by the cluster when placing resources and determining the order of some events.
have-quorum
Indicates if the cluster has quorum. If false, this may mean that the cluster cannot start resources or fence other nodes. See no-quorum-policy below.

Note that although these fields can be written to by the admin, in most cases the cluster will overwrite any values specified by the admin with the "correct" ones. To change the admin_epoch, for example, one would use:
# cibadmin --modify --crm_xml '<cib admin_epoch="42"/>'
A complete set of fields will look something like this:

Example 3.1. An example of the fields set for a cib object

<cib have-quorum="true" validate-with="pacemaker-1.0"
  admin_epoch="1" epoch="12" num_updates="65"
  dc-uuid="ea7d39f4-3b94-4cfa-ba7a-952956daabee">