Patent ID: 8495250
Filing Date: 2013-07-23
Classification: G06F

Abstract:
1. A system for facilitating access to data in a wide area network, comprising: a cache subsystem comprising in a cache for a local cluster file system including multiple computing nodes; a caching layer function comprising a gateway node, wherein the caching function provides scalable multi-node file system caching in the local cluster file system by: caching local file data in the cache by fetching file data on demand from a remote cluster file system into the cache over the network, wherein the local file data corresponds to file data in the remote cluster file system; and asynchronously committing local file information from the cache to the remote cluster file system over the network; wherein for dependent metadata operations, the gateway node: detects potential interdependency between objects of a set of update requests, and upon detecting that the data objects are interdependent, asynchronously services the update requests in the order in which they were executed on the application nodes.