Users Guide

546 | Administration Dell Networking W-ClearPass Policy Manager 6.6 | User Guide
cleared from all nodes in the cluster.
Once the machine authentication cache is cleared, it takes up to 5 seconds to resync the cache.
To clear machine authentication cache on all the nodes in a cluster:
1. Navigate to the Administration > Server Manager > Server Configuration page.
The Server Configuration page opens:
Figure 538: Server Configuration Page > Clear Machine Authentication Cache
2. Click the Clear Machine Authentication Cache link.
The following prompt is displayed:
Are you sure you want to clear machine authentication cache?
3. To proceed with the operation, click Yes.
The following message appears:
Machine authentication cache cleared from all nodes
Making a Subscriber Node
In the Policy Manager cluster environment, the Publisher node acts as the master node. A Policy Manager
cluster can contain only one Publisher node. Administration, configuration, and database write operations can
occur only on the Publisher node.
The Policy Manager appliance defaults to a Publisher node unless it is made a Subscriber node. Cluster
commands can be used to change the state of the node, hence the Publisher can be made a Subscriber. When
it is a Subscriber, the Make Subscriber link is not displayed.
Note the following caveats when adding a Subscriber node:
l As part of this operation, configuration changes are blocked on the Publisher node during the initial cluster
sync process.
l All the application licenses on this server will be removed. To add and reactivate these application licenses,
contact Support—navigate to Administration > Support > Contact Support for contact information.
To add a Subscriber node:
1. On a Publisher node, navigate to the Administration > Server Manager > Server Configuration page.
The Server Configuration page opens.
2. Click the Make Subscriber link.
The Add Subscriber Node page opens: