SharePoint 2013 Distributed Cache Service

SharePoint 2013 provides a distributed cache service which stores the user’s login tokens in a centralized cache, and can be used by any of the front end web servers in a load balancing environment.

In SharePoint 2010, the login token is stored in the specific front end servers, in a load balancing setup if the user happens to hit a different front end server for subsequent requests then the user needs to be re-authenticated since the token for the previous request is stored in a different front end server, this caused delays and a need for re-authentication whenever the uses request hits a different front end server, behind the load balancer.


The Server running the Distributed Cache service is known as a cache host, we can have multiple servers running the Distributed Cache, these individual servers form a cache cluster, the cache cluster acts as a single unit, the total cache size is the sum of the memory allocated to the Distributed Cache service on each of the cache hosts.

The Distributed Cache service also helps in enabling micro blogs and feeds across all users. The Distributed Cache service caches the blog messages and comments and enables faster sharing of information among the users.


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SharePoint 2013 Distributed Cache Service