GB2417800A - Data updating management apparatus and method - Google Patents

Data updating management apparatus and method Download PDF

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Publication number
GB2417800A
GB2417800A GB0419777A GB0419777A GB2417800A GB 2417800 A GB2417800 A GB 2417800A GB 0419777 A GB0419777 A GB 0419777A GB 0419777 A GB0419777 A GB 0419777A GB 2417800 A GB2417800 A GB 2417800A
Authority
GB
United Kingdom
Prior art keywords
data
update
current set
current
node
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0419777A
Other versions
GB0419777D0 (en
Inventor
Gert Serroven
Hans Vancompernolle
Gery Verwimp
Patrick Van Laer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to GB0419777A priority Critical patent/GB2417800A/en
Publication of GB0419777D0 publication Critical patent/GB0419777D0/en
Publication of GB2417800A publication Critical patent/GB2417800A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G06F16/23—Updating
    • G06F16/2379—Updates performed during online database operations; commit processing

Abstract

A number of computer nodes or elements are required to operate on a set of data which is the same for all nodes. This is achieved by updating the data in response to an update message or time event. The method for updating comprises providing at each node a first, current set of data and a second set of data. When triggered by an update event, a new, second set of updated data is produced by utilising the first current set of data and the second set of data.

Description

241 7800
A DATA MANAGEMENT METHOD AND APPARATUS
This invention relates to a data management apparatus and method for enabling data management.
Computers in a network of interlinked nodes are often arranged to operate on a common set of data. Each node includes a copy of the data and thus it will be appreciated that for a network of say one hundred computer based nodes there will be one hundred copies of to the data.
For some implementations, it will be important that all the copies of the data are the same. Thus, a problem occurs where the data requires updating. Since, all of the nodes are performing operations utilising the data a problem occurs with updating the data.
The update will have to be carried out on all the copies before the data is used by that node. The invention arose in an effort to mitigate this problem.
According to the invention there is provided data management apparatus comprising a plurality of nodes each comprising at least a first current and a second set of data; update means responsive to an update event to derive from at least the second set a second current set of data to be used by the node.
The derivation may take place at a set time or preferably in response to a received instruction.
s The invention also provides a method.
A specific embodiment of the invention will now be described with reference to the specific embodiment as shown in the drawings.
to As is shown in figure 1, a communications network 1 comprises a number of network nodes 2 to 5 interlinked by communication links 6to 10.
The network nodes 2 to 5 are nominally identical formed by Is suitably programmed computers one node, node 2 will therefore be described. As is shown in figure 2, a network node comprises a block of core functionality 11 linked to a communications link application 12 and thus via the links 9, 10 to the rest of the network. The core 11 is linked to a soft switch software object 13. This in turn is connected to two databases 14 and 15 held in memory (not shown). The applications are provided by one or more microprocessors suitably programmed.
A schedule object 16 is linked to the core 1 1 and the software us switch 13. These components govern which of the databases 14, 15 are used or updated at any given time. - 2
In this particular network, node 4 also serves as a network manager. At initialization of the network database 14 is in use. At initialization all the nodes are furnished with the same data to be stored in this database and also database 15. Thus for a first period s of time, database 14 is allocated for use by the nodes.
The network manager 4 determines that an update is required to the database being used. An update database message is sent via the communications links to all the nodes in the network. This to message includes the new or revised data.
Each node receives the message and at the next available period updates the second database 15 via the softswitch 13. It should be noted that this is not the database currently in use. 1 C
A second time to switch message follows from the network manager giving a time to switch to using the updated database.
This message is passed from the core 11 to the schedule object go 16. At the indicated time the schedule object 16 sends a message to the switch object 13 which changes state to change the database allocated for use from database 14 to database 15 which includes the revised information. 3
Alternatively, the database 15 may include only the updated set of data. Upon receipt of the update instruction this updated data may be used to revise that held in database 14. The revised database 14 s is then the new current database and used. - 4 \

Claims (10)

1. Data management apparatus comprising a plurality of nodes each comprising at least a first current and a second set of data; update means responsive to an update event to derive from at least the second set a second current set of data to be used by the node.
2. Apparatus as claimed in claim 1 wherein the update means to derives the second current set of data from both the first current set and the second set of data.
3. Apparatus as claimed in claim 1 wherein the second set of data comprises substantially only updated data.
4. Apparatus as claimed in claim 1 wherein the derivation of the second current set of data comprises revising original data in the first current set by the updated data of the second set.
ho
5. Apparatus as claimed in any preceding claim wherein the update event comprises at least one receipt of an instruction to update and a time event.
6. Apparatus substantially as hereinbefore described with reference toand as illustrated by the drawings. S.
7. A data management method for managing data being utilised by a plurality of computer nodes or elements which method comprising providing at each node a first current set of data and a second set of data; in response to an update event deriving from at s least the second set of data a second current set of data and utilising the second current set of data at the node.
8. A method as claimed in claim 7 wherein the second current set of data is derived by updating that data in the first current set of data to which corresponds to data in the second set of data.
9. A method as claimed in claims 7 or 8 wherein the update event comprises at least one of a receipt of an update instruction or a time event.
10. A method substantially as hereinbefore described with reference to the drawing. s
GB0419777A 2004-09-07 2004-09-07 Data updating management apparatus and method Withdrawn GB2417800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0419777A GB2417800A (en) 2004-09-07 2004-09-07 Data updating management apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0419777A GB2417800A (en) 2004-09-07 2004-09-07 Data updating management apparatus and method

Publications (2)

Publication Number Publication Date
GB0419777D0 GB0419777D0 (en) 2004-10-06
GB2417800A true GB2417800A (en) 2006-03-08

Family

ID=33156101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0419777A Withdrawn GB2417800A (en) 2004-09-07 2004-09-07 Data updating management apparatus and method

Country Status (1)

Country Link
GB (1) GB2417800A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686620A (en) * 1984-07-26 1987-08-11 American Telephone And Telegraph Company, At&T Bell Laboratories Database backup method
EP0520459A2 (en) * 1991-06-28 1992-12-30 Digital Equipment Corporation A method and apparatus for indexing and retrieval of object versions in a versioned data base
US5794254A (en) * 1996-12-03 1998-08-11 Fairbanks Systems Group Incremental computer file backup using a two-step comparison of first two characters in the block and a signature with pre-stored character and signature sets
US6061686A (en) * 1997-06-26 2000-05-09 Digital Equipment Corporation Updating a copy of a remote document stored in a local computer system
WO2002054236A2 (en) * 2001-01-03 2002-07-11 Synchrologic, Inc. A system and method for data synchronization between remote devices
US6694335B1 (en) * 1999-10-04 2004-02-17 Microsoft Corporation Method, computer readable medium, and system for monitoring the state of a collection of resources
US6718350B1 (en) * 2000-11-21 2004-04-06 Pitney Bowes Inc. Method and system for selectively updating rating data and software data via internet or intranet in a carrier management system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686620A (en) * 1984-07-26 1987-08-11 American Telephone And Telegraph Company, At&T Bell Laboratories Database backup method
EP0520459A2 (en) * 1991-06-28 1992-12-30 Digital Equipment Corporation A method and apparatus for indexing and retrieval of object versions in a versioned data base
US5794254A (en) * 1996-12-03 1998-08-11 Fairbanks Systems Group Incremental computer file backup using a two-step comparison of first two characters in the block and a signature with pre-stored character and signature sets
US6061686A (en) * 1997-06-26 2000-05-09 Digital Equipment Corporation Updating a copy of a remote document stored in a local computer system
US6694335B1 (en) * 1999-10-04 2004-02-17 Microsoft Corporation Method, computer readable medium, and system for monitoring the state of a collection of resources
US6718350B1 (en) * 2000-11-21 2004-04-06 Pitney Bowes Inc. Method and system for selectively updating rating data and software data via internet or intranet in a carrier management system
WO2002054236A2 (en) * 2001-01-03 2002-07-11 Synchrologic, Inc. A system and method for data synchronization between remote devices

Also Published As

Publication number Publication date
GB0419777D0 (en) 2004-10-06

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20090205 AND 20090211

WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)