Caching
Use
A cache is used to store copies of documents when they are accessed for the first time. As a result, the documents can be accessed again more quickly, since the contents are taken directly from the cache. Caching, however, must not be confused with replication (see below). With caching, the original documents are stored in one location, namely on the content server. The copies in the cache can be replaced with newer content at any time.
The Knowledge Provider's Content Management Service provides two types of caching:
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Cache servers
Caching on special servers
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Client cache
Caching at the user's front end
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The original document is still located on the content server.
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The content server can retrieve the cache content at any time.
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Only documents that are actually requested (and therefore genuinely needed) are transferred.
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Frontend Cache in SAPGUI
The client cache is used by the Data Provider to cache documents that are read from an SAP HTTP content server or from the SAP System.
This type of caching is extremely fast. However, each user must fill his or her own cache and resources are used at each front end.
Cache Servers
The cache server is used to cache special content server requests. Remote accesses are cached and executed locally.
This type of caching is ideal for scenarios in which many different users have joint access to the cache. The documents only have to be sent once across the wide area network.