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1. (WO2005013157) DYNAMIC REASSIGNMENT OF DATA OWNERSHIP
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/013157 International Application No.: PCT/US2004/024555
Publication Date: 10.02.2005 International Filing Date: 28.07.2004
Chapter 2 Demand Filed: 14.03.2005
IPC:
G06F 9/50 (2006.01) ,G06F 17/30 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
9
Arrangements for programme control, e.g. control unit
06
using stored programme, i.e. using internal store of processing equipment to receive and retain programme
46
Multiprogramming arrangements
50
Allocation of resources, e.g. of the central processing unit (CPU)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
17
Digital computing or data processing equipment or methods, specially adapted for specific functions
30
Information retrieval; Database structures therefor
Applicants:
BAMFORD, Roger, J. [US/US]; US (UsOnly)
CHANDRASEKARAN, Sashikanth [IN/US]; US (UsOnly)
PRUSCINO, Angelo [IT/US]; US (UsOnly)
ORACLE INTERNATIONAL CORPORATION [US/US]; 500 Oracle Parkway Redwood Shores, CA 94065, US (AllExceptUS)
Inventors:
BAMFORD, Roger, J.; US
CHANDRASEKARAN, Sashikanth; US
PRUSCINO, Angelo; US
Agent:
HICKMAN, Brian, D.; Hickman, Palermo Truong & Becker LLP Suite 550 2055 Gateway Place San Jose, CA 95110-1089, US
DENDORFER, Claus; Wächtershäuser & Hartz Weinstrasse 8 80333 München, DE
Priority Data:
10/831,40123.04.2004US
60/492,01901.08.2003US
Title (EN) DYNAMIC REASSIGNMENT OF DATA OWNERSHIP
(FR) REAFFECTATION DYNAMIQUE DE LA PROPRIETE DE DONNEES
Abstract:
(EN) Various techniques are described for improving the performance of a shared-nothing database system in which at least two of the nodes that are running the shared-nothing database system have shared access to a disk. Specifically, techniques are provided for changing the ownership of data in a shared-nothing database dynamically, based on factors such as which node would be the most efficient owner relative to the performance of a particular operation. Once determined, the ownership of the data may be changed permanently to the new owner, or temporarily for the duration of the particular operation.
(FR) La présente invention se rapporte à diverses techniques permettant d'améliorer les performances d'un système base de données ne partageant rien, dans lequel au moins deux des noeuds sur lesquels fonctionne ce système base de données ne partageant rien possèdent un accès partagé à un disque. Spécifiquement, l'invention concerne des techniques permettant de changer dynamiquement la propriété de données dans une base de données ne partageant rien, sur la base de facteurs indiquant par exemple quel noeud s'avérerait le propriétaire le plus efficace relativement aux performances d'une opération particulière. Une fois déterminée, la propriété des données peut être changée de manière permanente au profit du nouveau propriétaire, ou temporairement pendant la durée de l'opération particulière.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)