WO2009111492A4 - Data synchronization protocol - Google Patents

Data synchronization protocol Download PDF

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Publication number
WO2009111492A4
WO2009111492A4 PCT/US2009/035909 US2009035909W WO2009111492A4 WO 2009111492 A4 WO2009111492 A4 WO 2009111492A4 US 2009035909 W US2009035909 W US 2009035909W WO 2009111492 A4 WO2009111492 A4 WO 2009111492A4
Authority
WO
WIPO (PCT)
Prior art keywords
sync
sync mode
proposed
server
mode
Prior art date
Application number
PCT/US2009/035909
Other languages
French (fr)
Other versions
WO2009111492A1 (en
Inventor
Brendon A. Mccarthy
Carsten Guenther
Original Assignee
Apple Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Apple Inc. filed Critical Apple Inc.
Priority to KR1020127004382A priority Critical patent/KR101343202B1/en
Priority to KR1020117026597A priority patent/KR101186042B1/en
Priority to KR1020107022191A priority patent/KR101167833B1/en
Priority to CN2009801160698A priority patent/CN102016846B/en
Priority to JP2010549823A priority patent/JP5280462B2/en
Priority to CA2717535A priority patent/CA2717535C/en
Priority to GB1016416A priority patent/GB2471227A/en
Priority to AU2009221998A priority patent/AU2009221998B2/en
Publication of WO2009111492A1 publication Critical patent/WO2009111492A1/en
Publication of WO2009111492A4 publication Critical patent/WO2009111492A4/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/52—Program synchronisation; Mutual exclusion, e.g. by means of semaphores
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

Among other things, techniques and systems are disclosed for syncing data between a client device and a server. Synchronizing data includes initiating a sync session by negotiating a sync mode between a client device and a server for each of one or more dataclasses. A status code is generated based on a result of the negotiating. Based on the generated status code, the client device and the server exchanges one or more data items to be updated for the one or more dataclasses using the negotiated sync mode for each dataclass. The exchanged one or more data items are updated at the client device or the server The updated one or more data items are committed at the client or the server.

Claims

AMENDED CLAIMSreceived by the International Bureau on 14 September 2009(14.09.09)What is claimed is:
1. A method of synchronizing data, the method comprising: receiving a request to initiate a sync session, comprising receiving a separate proposed sync mode for each of multiple dataclasses in parallel, and receiving changes to the multiple dataclasses; generating one or more status codes to indicate whether the proposed sync mode for each dataclass is accepted; based on the generated status code, using the accepted sync mode for each dataclass to selectively update data items associated with the changes to the multiple dataclasses in parallel; and selectively committing the updated data items at the server.
2. The method of claim 1 , wherein generating the one or more status codes comprises accessing information saved from a previous sync session to determine whether to use the proposed sync mode to synchronize the one or more data items.
3. (Cancelled)
4. The method of claim 1 , wherein receiving the request comprises receiving the proposed sync mode that includes a fast sync mode, a slow sync mode or a reset sync mode.
5. The method of claim 1 , wherein the receiving the request comprises receiving the proposed sync mode that includes a fast sync mode that enables exchange of data items to be updated only.
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6. The method of claim 5, further comprising reacceptiπg the fast sync mode after the sync session is interrupted.
7. The method of claim 1, further comprising completing the sync session in one round trip that includes two messages.
8. The method of claim 1 , wherein receiving the request comprises: receiving the proposed sync mode and the changes to the dataclasses in a single message from a client device.
9. The method of claim 1 , wherein selectively committing comprises: selectively committing the updated data items at the server when a client device sends a command to commit the updated data items.
10. The method of claim 1 , further comprising: rejecting the proposed sync mode; and responding to the request with a different sync mode.
11. A computer program product, embodied on a computer readable medium, operable to cause a data processing apparatus to perform operations comprising: receiving a request to initiate a sync session, comprising receiving a separate proposed sync mode for each of multiple dataclasses in parallel, and receiving changes to the dataclasses; generating at least one status code to indicate whether the proposed sync mode for each dataclass is accepted; based on the generated status code, using the accepted sync mode for each dataclass to selectively update data items associated with the changes to the dataclasses in parallel; and selectively committing the updated data items at a data repository.
68
12. The computer program product of claim 11 , further operable to cause a data processing apparatus to access information saved from a previous sync session to generate the one or more status codes.
13. (Cancelled)
14. The computer program product of claim 11 , further operable to cause a data processing apparatus to receive the proposed sync mode that includes a fast sync mode, a slow sync mode or a reset sync mode.
15. The computer program product of claim 11 , further operable to cause a data processing apparatus to receive the proposed sync mode that includes a fast sync mode that enables exchange of data items to be updated only.
16. The computer program product of claim 15, further comprising reinitiating a fast sync mode when the sync session is interrupted.
17. The computer program product of claim 11 , further operable to cause a data processing apparatus to complete the sync session in one round trip that includes two messages.
18. The computer program product of claim 11 , further operable to cause a data processing apparatus to receive the proposed sync mode and the changes to the dataclasses in a single message from a client device.
19. The computer program product of claim 11 , further operable to cause a data processing apparatus to
69 selectively commit the updated data items at the server when a client device sends a command to commit the updated data items.
20. The computer program product of claim 11 , further operable to cause a data processing apparatus to perform operations comprising: reject the proposed sync mode; and respond to the request with a different sync mode.
21. A synchronization server comprising: a processor configured to operate a transport protocol that enables opening of one or more connections to one or more client devices; and a sync protocol that enables data synchronization between the server and the one or more client devices over the opened one or more connections, wherein the sync protocol enables the server to receive a request to initiate a sync session, wherein the request includes a separate proposed sync mode for each of multiple dataclasses received in parallel, and changes to the multiple dataclasses, generate one or more status codes to indicate whether the proposed sync mode for each dataclass is accepted, based on the generated status code, using the accepted sync mode for each dataclass to selectively update data items associated with the changes to the data classes, and selectively commit the updated data items.
22. The server of claim 21 , wherein the processor is configured to access a data repository to update the data items based on the received changes.
70
23. The server of claim 21 , wherein the processor is configured to operate the sync protocol to accept or reject the proposed sync mode for each dataclass based on information saved from a previous sync session.
24. (Cancelled)
25. The server of claim 21 , wherein the processor is configured to operate the sync protocol to receive the proposed sync mode that includes a fast sync mode, a slow sync mode or a reset sync mode.
26. The server of claim 21 , wherein the processor is configured to operate the sync protocol to receive the proposed sync mode that includes a fast sync mode that enables the one or more client devices to send data items to be updated only.
27. The server of claim 26, wherein the processor is configured to operate the sync protocol to receive request to reinitiate a fast sync when the sync session is interrupted.
28. The server of claim 21 , wherein the processor is configured to operate the sync protocol to complete the sync session in one round trip that includes two messages.
29. The server of claim 21 , wherein the processor is configured to operate the sync protocol to receive the proposed sync mode and the changes to the dataclasses in a single message from at least one of the one or more client devices.
30. The server of claim 21 , wherein the processor is configured to operate the sync protocol to selectively commit the updated data items at the server when one of the one or more client devices sends a command to commit the updated data items.
71
31. The server of claim 21 , wherein the processor is configured to operate the sync protocol to rejecting the proposed sync mode; and responding to the request with a different sync mode.
32. A method of synchronizing data, the method comprising: sending a request to a server to initiate a sync session, comprising sending a proposed sync mode for each of multiple dataclasses in parallel, and sending one or more changes to the dataclasses; receiving one or more status codes indicative of whether the proposed sync mode for each dataclass has been accepted by the server; based on the received status code, using the accepted sync mode to receive from the server additional changes to the dataclasses; and committing at a client device the additional changes received from the server.
33. The method of claim 32, further comprising: receiving the one or more status codes that indicate that the proposed sync mode for at least one of the data classes has been rejected by the server; and sending another request that includes a different sync mode than the rejected sync mode.
34. The method of claim 32, further comprising: sending the proposed sync mode and the one or more changes in a single message to the server.
35. (Cancelled)
72
36. The method of claim 32 wherein sending the proposed sync mode for two or more dataclasses in parallel comprises sending a different proposed sync mode for at least two of the dataclasses in parallel.
37. The method of claim 32, wherein sending a different proposed sync modes for at least two of the dataclasses in parallel comprises sending a proposed fast sync mode for one of the dataclasses and a proposed slow sync mode for another of the dataclasses.
38. The method of claim 32, further comprising reinitiating the sync session using the accepted sync protocol after the sync session is interrupted.
39. A computer program product, embodied on a computer-readable medium, operable to cause a data processing apparatus to perform one or more operations comprising: sending a request to a server to initiate a sync session, comprising sending a separate proposed sync mode for each of multiple dataclasses in parallel, and sending one or more changes to the one or more dataclasses; receiving one or more status codes indicative of whether the proposed sync mode for each dataclass has been accepted by the server; based on the received status code, using the accepted sync mode to receive from the server additional changes to the one or more dataclasses; and committing at a client device the additional changes received from the server.
40. The computer program product of claim 39, further operable to cause a data processing apparatus to perform operations comprising: receiving the one or more status codes that indicate that the proposed sync mode for at least one of the data classes has been rejected by the server; and sending another request that includes a different sync mode than the rejected sync mode.
41. The computer program product of claim 39, further operable to cause a data processing apparatus to send the proposed sync mode and the one or more changes in a single message to the server.
42. (Cancelled)
43. The computer program product of claim 39, further operable to cause the data processing apparatus to send a different proposed sync mode for at least two of the dataclasses in parallel.
44. The computer program product of claim 39, further operable to cause the data processing apparatus to send a proposed fast sync mode for one of the dataclasses and a proposed slow sync mode for another of the dataclasses.
45. The computer program product of claim 39, further operable to cause the data processing apparatus to reinitiate the sync session using the accepted sync protocol after the sync session is interrupted.
74
46. A client device comprising: a processor configured to operate a transport protocol that enables opening of one or more connections to a server; and a sync protocol that enables data synchronization between the client device and the server over the opened one or more connections, wherein the sync protocol enables the client device to send a request to a server to initiate a sync session, wherein the request includes a separate proposed sync mode for each of multiple datadasses sent in parallel, and one or more changes to the one or more datadasses; receive one or more status codes indicative of whether the proposed sync mode for each dataclass has been accepted by the server; based on the received status code, use the accepted sync mode to receive from the server additional changes to the datadasses; and commit at a client device the additional changes received from the server.
47. The client device of claim 46, wherein the processor is configured to operate the sync protocol to: receive the one or more status codes that indicate that the proposed sync mode for at least one of the data classes has been rejected by the server; and send another request that includes a different sync mode than the rejected sync mode.
48. The client device of claim 46, wherein the processor is configured to operate the sync protocol to: send the proposed sync mode and the one or more changes in a single message to the server.
75
49- (Cancelled)
50. The client device of claim 46, wherein the processor is configured to operate the sync protocol to send the proposed sync mode for the.dataclasses in parallel comprising sending a different proposed sync mode for at least two of the dataclasses in parallel.
51. The client device of claim 46, wherein the processor is configured to operate the sync protocol to send a proposed fast sync mode for one of the dataclasses and a proposed slow sync mode for another of the dataclasses.
52. The client device of claim 46, wherein the processor is configured to operate the sync protocol to reinitiate the sync session using the accepted sync protocol after the sync session is interrupted.
76
PCT/US2009/035909 2008-03-04 2009-03-03 Data synchronization protocol WO2009111492A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1020127004382A KR101343202B1 (en) 2008-03-04 2009-03-03 Data Synchronization Protocol
KR1020117026597A KR101186042B1 (en) 2008-03-04 2009-03-03 Data synchronization protocol
KR1020107022191A KR101167833B1 (en) 2008-03-04 2009-03-03 Data synchronization protocol
CN2009801160698A CN102016846B (en) 2008-03-04 2009-03-03 Data synchronization protocol
JP2010549823A JP5280462B2 (en) 2008-03-04 2009-03-03 Data synchronization protocol
CA2717535A CA2717535C (en) 2008-03-04 2009-03-03 Data synchronization protocol
GB1016416A GB2471227A (en) 2008-03-04 2009-03-03 Data synchronization protocol
AU2009221998A AU2009221998B2 (en) 2008-03-04 2009-03-03 Data synchronization protocol

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/042,283 US7747784B2 (en) 2008-03-04 2008-03-04 Data synchronization protocol
US12/042,283 2008-03-04

Publications (2)

Publication Number Publication Date
WO2009111492A1 WO2009111492A1 (en) 2009-09-11
WO2009111492A4 true WO2009111492A4 (en) 2009-11-05

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Application Number Title Priority Date Filing Date
PCT/US2009/035909 WO2009111492A1 (en) 2008-03-04 2009-03-03 Data synchronization protocol

Country Status (9)

Country Link
US (3) US7747784B2 (en)
EP (2) EP2439660A3 (en)
JP (5) JP5280462B2 (en)
KR (3) KR101167833B1 (en)
CN (3) CN102016846B (en)
AU (1) AU2009221998B2 (en)
CA (2) CA2833511C (en)
GB (1) GB2471227A (en)
WO (1) WO2009111492A1 (en)

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US20120036212A1 (en) 2012-02-09
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