Nessus Agents may become unevenly distributed across child nodes for a number of reasons. For example, when a child node is temporarily unavailable, was disabled, was deleted, or was recently added. When the imbalance passes a certain threshold, Nessus Manager gives you the option to rebalance child nodes.
When you rebalance child nodes, Nessus Agents get redistributed evenly across child nodes. Nessus Agents unlink from an overloaded child node and relink to a child node with more availability.
To rebalance child nodes:
In the top navigation bar, click Scans.
The My Scans page appears.
In the left navigation bar, click Agents.
The Agents page appears.
Click the Cluster tab.
Nessus Manager displays the child nodes table.
In the upper-right corner of the page, click Rebalance Nodes.
Nessus Manager rebalances the Nessus Agent distribution across child nodes.