Patent attributes
The disclosed embodiments disclose techniques for providing distributed change notifications for a distributed filesystem. Two or more cloud controllers collectively manage distributed filesystem data that is stored in the cloud storage systems; the cloud controllers ensure data consistency for the stored data, and each cloud controller caches portions of the distributed filesystem. During operation, a cloud controller receives a request from a client to access a file in the distributed filesystem. The cloud controller determines that the file needs strong read-after write consistency and sends a registration notification to the other cloud controllers of the distributed filesystem to request immediate notification of any changes to the file.
