On the Work with Audit History display, it is possible to see repeated audit runs that have zero (0) objects selected during the time frame that prioritized audits are allowed to run each day. Zero objects selected means that no objects matched the frequency specified for criteria for selecting objects at the time when the prioritized audit ran.
Consider this example of how prioritized audits operate. Audit #FILATR is set to run priority audits using its shipped default values for priority auditing. This means the audit will run approximately once per hour between 3 and 8 a.m. every day. Each audit run will select the following:
Any replicated objects that were not equal in their last audit.
Any new replicated objects had never been audited.
Any replicated objects that changed in the past 24 hours.
Any replicated objects that did not change since they were audited a week ago.
Any replicated objects that did not change since their last audit a month (30 days) ago and have a history of repeated consecutive successful audits.
For the first run (between 3 and 4 a.m.) of a normal work day, it is likely the audit selected objects in the new and changed in the past day categories, and may have selected some objects in other categories as well. The second run is likely to have selected fewer objects, and may have selected only objects that had differences from the earlier run. If those differences were resolved, then the subsequent runs that day are likely to have selected no objects because none were eligible. While such a daily pattern may repeat, it is also subject to replication and other auditing activity within your environment.