File change notifications in a scale-out nas system

A computer program product for file notifications in a scale-out network-attached storage system, the computer program product comprising a computer readable storage medium having program code embodied therein, the program code readable/executable by a processor to:

• create, on a first local node, a file change notification message in response to a client one or more of creating, deleting, and modifying a file system item addressed through a file path, the first local node sending the file change notification message to one or more local client processes flagged to receive file change information for the file path, wherein a local client process is associated with the first local node and represents a client connected to the first local node and wherein the file change notification message comprises information regarding a file change for the file path;
• check a global node for one or more second local nodes flagged to receive file change information for the file path, the one or more second local nodes different than the first local node;
• and
• send a file change notification message from the first local node to the one or more second local nodes in response to receiving identification of the one or more second local nodes flagged to receive file change information for the file path, a second local node sending a file change notification message to one or more local client processes flagged to receive file change information for the file path, the one or more local client processes associated with the second local node and being different than the one or more local client processes associated with the first local node wherein a local client process represents a client connected to a second local node.