Microsoft Technology Licensing, LLC

Qibo Zhu

David Matthew Kruse

David Allen Dion

Lokesh Srinivas Koppolu

Vladimir Petter

Mathew George

MingDong (Gary) Shang

A generation identifier is employed with various systems and methods in order to identify situations where a workload has been reassigned to a new node and where a workload is still being processed by an old node during a failure between nodes. A master node may assign a workload to a worker node. The worker node sends a request to access target data. The request may be associated with a generation identifier and workload identifier that identifies the node and workload. At some point, a failure occurs between the master node and worker node. The master node reassigns the workload to another worker node. The new worker node accesses the target data with a different generation identifier, indicating to the storage system that the workload has been reassigned. The old worker node receives an indication from the storage system that the workload has been reassigned and stops processing the workload.

Distributed workload reassignment following communication failure

A multi-connection information system is described herein that uses multiple connections to connect to a resource in a single file system session in a way that is controllable from protocols above a transport layer. The system also allows a single connection to be shared by multiple sessions. Sessions can be bound to multiple connections to enable communication over multiple transports. During the initial negotiation of a session, a client and a server determine whether multiple connections are supported between the client and the server within a session. After establishing an initial connection, additional connections can be established and bound to the existing session. The multiple connections can be used for failover and/or load balancing. The multi-connection information system provides a protocol for discovering a capability to establish multiple channels within a session and information about the available connections between two particular resources.

Multichannel connections in file system sessions

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Qibo Zhu