Types of result caches in Microstrategy

Types of result caches Microstrategy

The following types of result caches are created by Intelligence Server:

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Matching caches

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History caches

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Matching-History caches

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XML caches

All document caches are Matching caches; documents do not generate History caches or XML caches. Intelligent Cube reports do not create Matching caches.

Matching caches

Matching caches are the results of reports and documents that are retained for later use by the same requests later on. In general, Matching caches are the type of result caches that are used most often by Intelligence Server.

When result caching is enabled, Intelligence Server determines for each request whether it can be served by an already existing Matching cache. If there is no match, it then runs the report or document on the database and creates a new Matching cache that can be reused if the same request is submitted again. This caching process is managed by the system administrator and is transparent to general users who simply benefit from faster response times.

History caches

History caches are report results saved for future reference in the History List by a specific user. When a report is executed, an option is available to the user to send the report to the History List. Selecting this option creates a History cache to hold the results of that report and a message in the user’s History List pointing to that History cache. The user can later reuse that report result set by accessing the corresponding message in the History List. It is possible for multiple History List messages, created by different users, to refer to the same History cache.

The main difference between Matching and History caches is that a Matching cache holds the results of a report or document and is accessed during execution; a History cache holds the data for a History List message and is accessed only when that History List message is retrieved.

For more information about History Lists, see Saving report results: History List.

Matching-History caches

A Matching-History cache is a Matching cache that is referenced by at least one History List message. It is a single cache composed of a Matching cache and a History cache. Properties associated with the Matching caches and History caches discussed above correspond to the two parts of the Matching-History caches.

XML caches

An XML cache is a report cache in XML format that is used for personalized drill paths. It is created when a report is executed from MicroStrategy Web, and is available for reuse in Web. It is possible for an XML cache to be created at the same time as its corresponding Matching cache. XML caches are automatically removed when the associated report or History cache is removed.

To disable XML caching, select the Enable Web personalized drill paths option in the Project definition: Drilling category in the Project Configuration Editor. Note that this may adversely affect Web performance.

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