SYSTEMS AND METHODS FOR SIMULTANEOUS FILE TRANSFER AND COPY ACTIONS

• US 20110125713A1
• Filed: 11/24/2009
• Published: 05/26/2011
• Est. Priority Date: 11/24/2009
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Nageshappa, Prashanth K., Kalle, Prasanna K., Lakshminarayachar, Venkataraghavan
• Granted Patent: US 8,250,122 B2
• Time in Patent Office: Days
• US Class Current: 707/643
• CPC Class Codes: G06F 11/1435 using file system or storage system metadata
• CPC Class Codes: G06F 11/2094 Redundant storage or storage space G06F11/2056 takes precedence
• CPC Class Codes: G06F 2201/82 Solving problems relating to consistency ensuring consistency in mirrored systems G06F11/2064
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]

Abstract

Embodiments of the invention broadly contemplate systems, methods, apparatuses and program storage devices providing a mechanism in which a file system and copy command (or file transfer command) allows the start of a copy operation when a file is being copied to and allow the system to continue to read the file as and when it gets updated (appended with additional data), thus permitting automated simultaneous file transfer and copy operations.

Claims

1. An apparatus comprising:

one or more processors; and

a computer readable storage medium having computer readable code embodied therewith and executable by the one or more processors, the computer readable program code comprising;

computer readable program code configured to receive one or more file transfer requests for one or more files;

computer readable program code configured to check the one or more files corresponding to the one or more file transfer requests to determine if the one or more files are opened in an append mode;

computer readable program code configured to start one or more file transferring sessions for the one or more files; and

computer readable program code configured to ensure that the one or more file transferring sessions remain open until the one or more files are no longer opened in the append mode.

2. The apparatus according to claim 1, wherein the computer readable program code further comprises:

computer readable program code configured to note one or more sizes of the one or more files responsive to a determination that the one or more files is opened in the append mode.

3. The apparatus according to claim 2, wherein the computer readable program code further comprises:

computer readable program code configured to check one or more sizes of the one or more files subsequent to said note of the one or more sizes of the one or more files.

4. The apparatus according to claim 3, wherein the computer readable program code further comprises:

computer readable program configured to transfer one or more additional portions of the one or more files responsive to a determination that one or more additional portions of the one or more file have been received subsequent to the start of said one or more file transfers.

5. The apparatus according to claim 3, wherein the computer readable program code further comprises:

computer readable program code configured to continue the one or more file transferring sessions while repeatedly checking the one or more sizes of the one or more files;

wherein the one or more file transferring sessions remain open for a file to be transferred until said file to be transferred is determined not to be in append mode.

6. The apparatus according to claim 1, wherein if the one or more files is not opened in the append mode, the one or more file transferring sessions immediately start and the apparatus proceeds to completely transfer said one or more files.

7. The apparatus according to claim 1, wherein the one or more file transfer requests are issued from one or more client devices.

8. The apparatus according to claim 7, wherein the one or more files corresponding to the one or more file transfer requests comprise one or more files currently being downloaded from one or more servers.

9. The apparatus according to claim 1, wherein the apparatus comprises a file transfer server operating under file transfer protocol.

10. A method comprising:

receiving one or more file transfer requests for one or more files;

checking the one or more files corresponding to the one or more file transfer requests to determine if the one or more files are opened in an append mode;

starting one or more file transferring sessions for the one or more files; and

ensuring that the one or more file transferring sessions remain open until the one or more files are no longer opened in the append mode.

11. The method according to claim 10, further comprising:

noting one or more sizes of the one or more files responsive to a determination that the one or more files is opened in the append mode.

12. The method according to claim 11, further comprising:

checking one or more sizes of the one or more files subsequent to said note of the one or more sizes of the one or more files.

13. The method according to claim 12, further comprising:

transferring one or more additional portions of the one or more files responsive to a determination that one or more additional portions of the one or more file have been received subsequent to the start of said one or more file transfers.

14. The method according to claim 13, further comprising:

continuing the one or more file transferring sessions while repeatedly checking one or more sizes of the one or more files;

wherein the one or more file transferring sessions remain open for a file to be transferred until said file to be transferred is determined not to be in append mode.

15. The method according to claim 10, wherein if the one or more files is not opened in the append mode, the one or more file transferring sessions immediately start and proceed to completely transfer of said one or more files.

16. The method according to claim 10, wherein the one or more file transfer requests are issued from one or more client devices.

17. The method according to claim 10, wherein the one or more files corresponding to the one or more file transfer requests comprise one or more files currently being downloaded from one or more servers.

18. The method according to claim 10, wherein said checking, starting and ensuring steps are performed on a file transfer server operating under file transfer protocol.

19. A computer program product comprising:

a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising;

computer readable program code configured to receive one or more file transfer requests for one or more files;

computer readable program code configured to check the one or more files corresponding to the one or more file transfer requests to determine if the one or more files are opened in an append mode;

computer readable program code configured to start one or more file transferring sessions for the one or more files; and

computer readable program code configured to ensure that the one or more file transferring sessions remain open until the one or more files are no longer opened in the append mode.

20. The computer program product according to claim 19, wherein the one or more files corresponding to the one or more file transfer requests comprise one or more files currently being downloaded from one or more servers.