The Cache Summary screen

The Server Tools Cache Summary screen includes the following information:

Max Cache Space (KB)	Maximum amount of space to allot to the global cache.
Stale Time (mins)	Maximum time allowed for an object to be in the cache without a database refresh.
Page Loaded at	Date and time of the last refresh of the data on this screen.

Available actions on this screen

From the Cache Info screen, you can do the following:

Edit	Click Edit to enter different values for Maximum Cache Space and Stale Time. If you change these parameters from the Cache Summary view, the values you specify apply only to the PolicyCenter server to which you are connected. If you restart the server, your changes are lost. For your changes to persist, edit the their values in file config.xml.
Refresh	Click Refresh to update the information shown on this screen. This action also updates the date and time values shown for the Page Loaded at field.
Download	Click Download to download a CSV-formatted file containing detailed cache information.
Clear Global Cache	Click Clear Global Cache to clear the cache of all entities. Note, however that the cache always contains some objects to support an active server.

Cache summary graphs

The Cache Summary screen provides the following graphs.

Graph	Description
Cache Size	The memory used by the cache over time.
Hits and Misses (Stacked)	The number of cache hits (an object was found in the cache) and misses (object was not found in the cache) and the miss percentage.
Type of Cache Misses	The number of cache misses caused by PolicyCenter evicting an object because the cache was full and the number of missed caused by PolicyCenter evicting an object due to reaping. This graph is not visible if configuration parameter GlobalCacheDetailedStats in config.xml is set to `false`.
Evict Information	Information about cache evictions over time, including: Number of times no entry was found to evict when cache was full Number of evictions within active time when cache was full Number of evictions when cache was full Number of evictions due to reaping This graph is not visible if configuration parameter GlobalCacheDetailedStats in config.xml is set to `false`.
Current Age Distribution	The number of objects of various ages in the cache.
Current Cache Contents for Age All	The percentage of types of objects present in the cache for all ages.