Patent application EP17155152A (EP), filed 2017-02-08
Publication number: EP3361705A1
Title: DISTRIBUTED NETWORK SYSTEM AND METHOD OF MONITORING DATA SYNCHRONIZATION IN A DISTRIBUTED NETWORK SYSTEM
Abstract: A distributed network comprises at least three information holding devices. Each information holding device comprises a processing device and a storing device for storing a plurality of data items. Each processing device runs a synchronization tool for synchronizing a data item of one holding device with a data item of another information holding device. The synchronization tools are configured to transmit synchronization information to a log data set containing information indicative of the first one of the data items and second one of the data items and associated synchronization information indicative of a time of the synchronization. At least one processor is configured to determine a performance of synchronization of the information holding devices using the log data set.
IPC codes: H04L  29/    08            A I
H04L  67/  1095            A I
Claims: number: 1
text: A distributed network system comprising
number: 2
text: The distributed network system according to claim 1, wherein
number: 3
text: The method according to claim 2, wherein any synchronization tool (AB, BC, CB, BA) for synchronizing at least one of the first, second and third one of the data items (a10, b23, c762) is configured to supplement the log data set (DS) with information indicative about a time of the respective synchronization performed by the respective synchronization tool.
number: 4
text: The distributed network system according to one of claims 1 to 3, wherein there is a one-to-one relationship between the first one of the data items (a10) of the first information holding device (DVA) and second one of the data items (b23) of the second information holding device (DVB), and a one-to-one relationship between the second one of the data items (b23) of the second information holding device (DVB) and the third one of the data items (c762) of the third information holding device (DVC).
number: 5
text: The distributed network system according to one of claims 1 to 4, wherein the associated synchronization information is indicative of the source device (DVA-DVC) and sink device (DVA-DVC) of the respective synchronization.
number: 6
text: The distributed network system according to one of claims 1 to 5, wherein determining the performance of synchronization includes calculating a turn around time for a completed synchronization of the first through third one of the data items (a10, b23, c762).
number: 7
text: A method of monitoring data synchronization in a distributed network system comprising a plurality of information holding devices (DVA, DVB, DVC), each of the information holding devices storing a plurality of data items, the method comprising:
number: 8
text: The method according to claim 7, further comprising
number: 9
text: The method according to claim 8, wherein in any further synchronizing step involving at least one of the first, second and third one of the data items (a10, b23, c762), the log data set (DS) is supplemented with information indicative about a time of the respective synchronizing step.
number: 10
text: The method according to one of claims 7 to 9, further comprising determining a particular sequence of the first synchronizing step, second synchronizing step, and any further synchronizing step in accordance with the determined performance of synchronization.
number: 11
text: The method according to one of claims 7 to 10, further comprising determining at least one of: a plausibility of a respective one of the synchronizations, at least one missing propagation of synchronization, at least one false association of synchronization.
number: 12
text: A computer program product comprising software code sections which are configured to perform a method according to one of claims 7 to 11.
Office action: search_report, dated 2018-08-15
Rejection reasons: novelty_epc_54
inventive_step_epc_56
Prior art cited: ref_id: JP2011258122A
ref_type: patent
severity: background
ref_id: JP2014044532A
ref_type: patent
severity: background
ref_id: WO2009018063A2
ref_type: patent
severity: background
ref_id: US2017013058A1
ref_type: patent
severity: background
ref_id: WO2009018063
ref_type: patent
severity: novelty_destroying
ref_id: US2017013058
ref_type: patent
severity: obviousness
Final disposition: pending (2018-08-15)