Microsoft Technology Licensing, LLC

Spencer Alan Bishop

Jason Daniel Shay

Ran Kalach

Puneet Bhatia

Kashif Hasan

Fenghua Yuan

James Robert Benton

Michael S Murstein

A storage system for transactional data storage includes a key/value store comprising a first plurality of rows and a second plurality of rows, each of the first plurality of rows including a first key associated with a respective row of a database and a transaction state associated with the respective row, and each of the second plurality of rows including a second key associated with a respective row of the database and a data version of the respective row. The storage system is configured to provide a transaction state to and receive an updated transaction state from a plurality of different systems, each comprising a database engine to perform transactional database operations on the key/value store.

Transactional database layer above a distributed key/value store

A system hosts a file system representing a replica of file systems hosted on a plurality of nodes, each node storing data on a first storage medium. The system stores data on a second storage medium that is slower than the first storage medium. The system stores on the second storage medium a file received from one of the nodes when the file remains un-accessed by the nodes for a predetermined period of time. The first storage medium on the plurality of nodes stores a pointer to the file and not the data content of the file stored on the second storage medium. The system provides the file from the second storage medium to the first storage medium on one of the nodes while providing the plurality of nodes read and write access to the file stored on the second storage medium using the pointer on the first storage medium.

Reliable hierarchical storage management with data synchronization

A computing system is configured to be coupled to a remote storage system. The remote storage system comprises a key/value store. The computing system is configured to perform transactions on data stored at the remote storage system. The system includes a database client. The database client includes an interface configured to allow a user to request database operations using the database client. The system further includes a database engine coupled to the database client. The database engine is configured to receive requests for database operations from the database client. The database engine is further configured to obtain and operate on transaction state stored as one or more key/value pairs in the key/value store at the remote storage system from the remote storage system. The database engine is configured to transactionally perform data operations, using the transaction state, on one or more data key/value pairs in the key/value store.

Aspects of the subject matter described herein relate to data collection. In aspects, when data is desired from one or more data sources, a size and/or other data regarding the data is obtained. Then, a data structure is generated that indicates multiple chunks of the data to obtain. Using the data structure and a query template, a query is generated to obtain a chunk of data. The obtained chunk of data is stored in a local store. If more chunks need to be obtained, first a wait for a period is performed before submitting another query for another chunk of data.

Declarative partitioning for data collection queries

Disclosed herein is a system and method that can be used to synchronize files from a hosted file system where the client endpoint devices have direct access to the files stored on a hosted file store/system. When the client synchronizes with the files stored on the hosted file store the synchronization process identifies the files that need to be synchronized with the client and prepares batches of files to be synced. During the process of synchronization the files are not locked from other user's being able to use the files. If the file is modified by another endpoint during the file synchronization process the file will not be synchronized with the client device during the particular synchronization process. In this way synchronization becomes possible with the hosted service without impacting the performance of other devices that use and access the data in the hosted file store.

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Kirkland, WA, United States of America

Spencer Alan Bishop