Locating file data from a mapping file

A non-transitory computer readable medium with executable instructions stored thereon which, when executed by a first node of a storage system including a file system across a plurality of nodes including the first node, program the first node to execute operations comprising:

• storing, by the first node, location information indicative of data locations of a plurality of parts of a file in the file system;
• based, at least in part, on receiving a request from a client to retrieve location data corresponding to a certain part of the file, obtaining, by the first node, a data location of the certain part of the file based at least in part on the location information;
• and
• sending, by the first node, a response to the client that contains the location data, wherein:
• the location data indicates one or more second nodes that store the certain part of the file;
• and
• the request and the response use a protocol used for accessing files in the file system.

A method comprising:

• storing, by a first node in a storage system including a file system across a plurality of nodes including the first node, location information indicative of data locations of a plurality of parts of a file in the file system;
• based, at least in part, on receiving a request from a client to retrieve location data corresponding to a certain part of the file, obtaining, by the first node, a data location of the certain part of the file based at least in part on the location information;
• and
• sending, by the first node, a response to the client that contains the location data, wherein:
• the location data indicates one or more second nodes that store the certain part of the file, and
• the request and the response use a protocol used for accessing files in the file system.

A node in a storage system including a file system across a plurality of nodes including the node, wherein the node is programmed to:

• store, by the node, location information indicative of data locations of a plurality of parts of a file in the file system;
• based, at least in part, on receiving a request from a client to retrieve location data corresponding to a certain part of the file, obtain, by the node, a data location of the certain part of the file based at least in part on the location information;
• and
• send, by the node, a response to the client that contains the location data, wherein:
• the location data indicates one or more other nodes that store the certain part of the file;
• and
• the request and the response use a protocol used for accessing files in the file system.

A storage system including a plurality of nodes, with a file system across the plurality of nodes, the plurality of nodes including a first node, wherein the storage system is configured to:

• store, by the first node, location information indicative of data locations of a plurality of parts of a file in the file system;
• based, at least in part, on receiving a request from a client to retrieve location data corresponding to a certain part of the file, obtain, by the first node, a data location of the certain part of the file based at least in part on the location information;
• and
• send, by the first node, a response to the client that contains the location data, wherein:
• the location data indicates one or more second nodes that store the certain part of the file;
• and
• the request and the response use a protocol used for accessing files in the file system.