KB16403: How to Purge Web Caches in MicroStrategy Web ASP and JSP

Description

Strategy Web and Web Universal caches various properties that are related to the user, project, or the Strategy Intelligence Server. This helps in reducing the response time for every request by delivering the properties from a closer location than the original Strategy Intelligence Server. In majority of the cases, the default caching properties should be applicable to the business intelligence infrastructure.
 
There are three types of caches used in Strategy Web. These are described below:

1. Session Cache - Specific to a user and exists only while the user is logged in. This cache is deleted when the user logs out or if there's no activity for a specified timeout interval. The default value for a timeout is 1200 seconds or 20 minutes.
2. Project Cache - Specific to a project that is registered with the Strategy Intelligence Server. The default value for a timeout is 86400 seconds or 24 hours. The default value for a refresh time is 86400 seconds or 24 hours.
3. Server Cache - Specific to a Strategy Intelligence Server. The default value for a timeout is 86400 seconds or 24 hours. The default value for a refresh time is 86400 seconds or 24 hours.

Restarting the Web or Application Server will also purge caches. It is also possible to purge caches without restarting the server or waiting for the cache timeout settings to be reached. In Strategy Web GUI Interface, it is possible for a web administrator user to purge caches immediately.
Perform the following actions:
1. Navigate to the Strategy Web Administrator page.
In Strategy Web ASP .NET version:
http://WebServerName/MicroStrategy/asp/Admin.aspx
 
In Strategy Web JSP:
http://AppServerName:Port/MicroStrategy/servlet/mstrWebAdmin
 
2. At the end of the URL, append ?pg=purgecaches and press Enter.
3. This will display the Purge Caches page shown below:

4. Select the Check boxes for the specific caches to purge, or select the "Toggle All" to select all caches
5. Then click the "Purge" button to purge the caches.