Cache Expiration

All cache values have a time-to-live in the cache. This value determines how long a cache is valid; the larger the value the better performing the cache but also the greater chance the cache will become full of items that are out of date. This value, specified in milliseconds, can be configured from the adapter configuration screen under the Command Cache Properties tab.

The value should be set high enough so the caching helps performance. Setting the value too low will cause CIS to spend too much time adding and removing items from the cache which will remove any performance benefit caching may provide. Alternatively, setting the value to high will create a greater frequency of having cache full of items that are out of date (a dirty cache).