Abstract: Variety of approaches to provide an autonomous governor in a distributed system for preserving a shared resource are described. A hosted service initiates operations to provide the autonomous governor upon determining the shared resource to be managed. An initial lease count is designated to the shared resource. The initial lease count corresponds to an estimated capacity of the shared resource. Next, an assigned lease count is determined by incrementing or decrementing the initial lease count based on a detected actual capacity of the shared resource. Upon detecting a steady state of the assigned lease count, the assigned lease count is incremented to determine whether the actual capacity of the shared resource is increased.

Abstract: Variety of approaches to provide an autonomous governor in a distributed system for preserving a shared resource are described. A hosted service initiates operations to provide the autonomous governor upon determining the shared resource to be managed. An initial lease count is designated to the shared resource. The initial lease count corresponds to an estimated capacity of the shared resource. Next, an assigned lease count is determined by incrementing or decrementing the initial lease count based on a detected actual capacity of the shared resource. Upon detecting a steady state of the assigned lease count, the assigned lease count is incremented to determine whether the actual capacity of the shared resource is increased.

Abstract: A data center system includes a memory cache coupled to a data center controller. The memory cache includes volatile memory and stores data that is persisted in a database in a different data center system that is located remotely from the data center system rather than in the first data center system. The data center controller reads data from the memory cache and writes data to the memory cache.

Abstract: A data center system includes a memory cache coupled to a data center controller. The memory cache includes volatile memory and stores data that is persisted in a database in a different data center system that is located remotely from the data center system rather than in the first data center system. The data center controller reads data from the memory cache and writes data to the memory cache.

Abstract: A method, system, and computer-readable medium for accessing and managing an online storage system is disclosed. Access to a storage resource in a multiple server storage system is provided by sending to a lookup partitioning service server a resource identifier that is associated with a storage resource stored in a particular storage partition of a storage server. The LPS returns the looked-up partition that stores the storage resource associated with the resource identifier. Access to the storage resource is then enabled to the looked-up storage partition.

Abstract: A method, system, and computer-readable medium for accessing and managing an online storage system is disclosed. Access to a storage resource in a multiple server storage system is provided by sending to a lookup partitioning service server a resource identifier that is associated with a storage resource stored in a particular storage partition of a storage server. The LPS returns the looked-up partition that stores the storage resource associated with the resource identifier. Access to the storage resource is then enabled to the looked-up storage partition.

Abstract: A client programming model with abstraction hides from an underlying client application or application program interface (API) the details of where each element of data is located, and which copy of the data is resident on an available server and associated databases. The model wraps a database, such as a virtual database, and provides data-dependent and application-dependent routing, failover, and operational administration.