公开(公告)号：US10474653B2

公开(公告)日：2019-11-12

申请号：US15281718

申请日：2016-09-30

Applicant: Oracle International Corporation

Inventor： Niloy Mukherjee ,  Jesse Kamp ,  Tirthankar Lahiri ,  Maria Colgan ,  Vivekanandhan Raja ,  Vasudha Krishnaswamy ,  Aditi Gupta ,  Kartik Kulkarni

IPC: G06F16/22 ,  G06F3/06 ,  G06F16/27 ,  G06F16/2455

Abstract: Techniques are described herein for distributing distinct portions of a database object across volatile memories of selected nodes of a plurality of nodes in a clustered database system. The techniques involve storing a unit-to-service mapping that associates a unit (a database object or portion thereof) to one or more database services. The one or more database services are mapped to one or more nodes. The nodes to which a service is mapped may include nodes in disjoint database systems, so long as those database systems have access to a replica of the unit. The database object is treated as in-memory enabled by nodes that are associated with the service, and are treated as not in-memory enabled by nodes that are not associated with the service.

公开(公告)号：US20180096010A1

公开(公告)日：2018-04-05

申请号：US15281718

申请日：2016-09-30

Applicant: Oracle International Corporation

Inventor： Niloy Mukherjee ,  Jesse Kamp ,  Tirthankar Lahiri ,  Maria Colgan ,  Vivekanandhan Raja ,  Vasudha Krishnaswamy ,  Aditi Gupta ,  Kartik Kulkarni

IPC: G06F17/30 ,  G06F3/06

CPC classification number: G06F16/221 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/067 ,  G06F16/2282 ,  G06F16/24552 ,  G06F16/27

Abstract: Techniques are described herein for distributing distinct portions of a database object across volatile memories of selected nodes of a plurality of nodes in a clustered database system. The techniques involve storing a unit-to-service mapping that associates a unit (a database object or portion thereof) to one or more database services. The one or more database services are mapped to one or more nodes. The nodes to which a service is mapped may include nodes in disjoint database systems, so long as those database systems have access to a replica of the unit. The database object is treated as in-memory enabled by nodes that are associated with the service, and are treated as not in-memory enabled by nodes that are not associated with the service.