Microsoft Technology Licensing, LLC

Brian David Jones

Jack Allen Nichols

Neal Robert Christiansen

Daron Spektor

Ping Xie

Julian Burger

Yisheng Chen

George N Armah

Valeh Valiollah Pour Amiri

Tejprakash Singh Gill

Mark Thomas Mahony

Bill Sproule

Trevor Van Leeuwen

Kevin Paschal D'Souza

Kayla Lindsey Ngan

A data processing system implements obtaining, at a file services platform, first mapping information by mapping files, folders, or a combination thereof stored on each of a plurality of client devices associated with a first user. The data processing system further implements synchronizing the first mapping information with the plurality of client devices, receiving a first request for a first file from a first client device of the plurality of client devices, where the first file stored locally on a second client device of the plurality of client devices. The data processing system further implements requesting that the second client device upload an instance of the first file to the file services platform; receiving the instance of the first file from the second client device; and causing the first client device to download the instance of the first file from the file services platform to the first client device.

File upload on demand

Technologies for detecting changes in a namespace using namespace enumeration endpoint response payloads are disclosed. A namespace is enumerated at a first time by retrieving response payloads containing metadata describing each location in the namespace from a namespace enumeration endpoint. Signatures are generated based on the response payloads and stored. To determine if changes were made to the namespace between the first time and a subsequent second time, metadata is retrieved from the namespace enumeration endpoint for the namespace at the second time and signatures are generated. Signatures generated at the first time are then compared to the signatures generated at the second time. If the signatures are different, the items in the location in the namespace changed between the first time and the second time. Changes occurring in a location of the namespace can then be identified based on the metadata obtained at the first and second times.

Detecting changes in a namespace using namespace enumeration endpoint response payloads

A system is provided for enabling in-application support for topological changes to local files during remote synchronization. The techniques disclosed herein solve the problems of existing systems by mitigating conflict states and loss of edits being made to a file during synchronization. In addition, the techniques disclosed herein enable a user to interact directly with a productivity application to rename and/or move a file. The techniques disclosed herein provide an improved user experience and more efficient methods for interacting with files in that a user does not have to exit a productivity application and interact with an operating system interface to rename and/or move a file. A productivity application can operate in a server mode or a client mode depending on a validity of a requested destination location for a file.

In-application support for topological changes to files during remote synchronization

A request for an operation on a directory is received that requires a hydration of one or more files within the directory. A process is initiated to hydrate dehydrated descendent files of the folder. During the hydration process, attempts to introduce new dehydrated files in the folder are blocked. The request is processed when the hydration is complete.

Hydration of a hierarchy of dehydrated files

A system to enable a user to generate copies of files at a client device and to cause a file hosting platform to generate backups of these copies in a cloud database without transferring file content data for these files between the client device and the cloud database. When a user copies a file from a first folder on a client device to a second folder on the client device, the system may determine that the file content data for this file is already present in the cloud database. Then, rather than uploading the file content data to the cloud database from the client device, the system may cause a file hosting platform to access the file content data directly from the cloud database to perform a file copy operation.

Enhanced techniques for copying cloud stored files

Systems, components, devices, and methods for synchronizing a local object model with a remote object model are provided. A non-limiting example is a system or method for synchronizing a local object model with a remote object model. The method includes receiving a plurality of changes associated with the local object model. The changes modify at least one attribute state of an object in the local object model. The method also includes identifying outcome attribute states of the objects that are modified by the plurality of changes. The method includes identifying required attribute states of the objects for the plurality of changes. The method also includes building a dependency graph for the plurality of changes based on the identified required attribute states and generating an ordered list of the plurality of changes based on the dependency graph.

Attribute-based dependency identification for operation ordering

Device-specific chunked hash size tuning to maximize synchronization throughput is described. A synchronization client application or similar program may employ hashing to detect changes to content of remotely stored files and synchronize those (as opposed to synchronizing all files, for example). Instead of using static hash chunk sizes for all client applications of a cloud storage service, the synchronization client application may determine the size of hash buffer by baselining throughput of hashing on each synchronization device and finding the number of bytes hashed in a given amount of time. Thus, hash chunk size may be optimized on a machine by machine basis.

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Woodinville, WA, United States of America

Brian David Jones