The Cache Manager lets you manage the information cached on your Rock server(s) through the use of cache tags. Cache tags work a bit like personal and organizational tags, except in this case you're tagging types of information. Using the Cache Manager, you can tell Rock to clear the cache of information based on those tags. There are two sides when it comes to configuring and using the Cache Manager: the more user-friendly web person side, and the more technical, IT person side. Let's look at the web person side first. Clear Cache by Tag From the Cache Manager screen, you can add and view cache tags, clear the cache by cache tag, view cache statistics, and clear the cache by type. The complete list of cache tags, as well as their descriptions and number of items (called Linked Keys) currently cached by each tag are listed in the Cache Tags section of the screen. To clear cached items by a particular tag, click the button for that tag. Clearing the tagged items from the cache won't change the associated linked key number. Add Cache Tags Click the button to add a new cache tag. Tag names must be all lowercase with no spaces. Once created, they are stored as a defined value of the Cache Tag Defined Type and can't be deleted. Current Cache Statistics The Cache Statistics section of the screen displays the statistics for the cache type selected in the Cache Types field. Here's a breakdown of the stats provided: Hits – The number of times something was looked for and found in the cache.Misses – The number of times something was looked for but not found in the cache.Adds – The number of items added to the cache.Gets – The number of cache requests (i.e., the total number of hits and misses).Clears – The number of times a clear was performed on the cache. Because these statistics aren't used very frequently, they're turned off by default. This helps improve overall system performance. You can choose to Enable Statistics using the checkbox near the top of the page. Keep in mind that enabling statistics causes Rock to restart, so it’s best to do this when there isn’t much activity on your site. Clearing Cache by Type You can clear the cache of the item types specified in the Cache Types field by clicking the Clear Cache button.