Patent ID: 11907170
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer program product for managing access to a shared file in a storage from client nodes in a network, wherein the computer program product comprises a computer readable storage medium having computer readable program instructions to cause a first node and a second node to perform operations, the operations comprising:
serializing, by the first node, write requests from client nodes to write to the shared file using a first serialization technique involving use of providing an exclusive token to the client nodes to write to the shared file;
determining, by the first node, whether to switch to the second node to manage write requests to the shared file based on a pattern of write requests to the shared file;
notifying the client nodes to direct write requests to the shared file to the second node in response to determining to switch to the second node; and
processing, by the second node, write requests to the shared file to serialize writes to the shared file, using a second serialization technique different from the first serialization technique to serialize writes to the shared file, after the client nodes are notified to submit the write requests to the shared file to the second node.