Invention Grant
- Patent Title: Latency-aware live migration for multitenant database platforms
- Patent Title (中): 多租户数据库平台的潜在感知实时迁移
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Application No.: US13645103Application Date: 2012-10-04
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Publication No.: US08880477B2Publication Date: 2014-11-04
- Inventor: Sean Barker , Yun Chi , Hyun Jin Moon , Vahit Hakan Hacigumus
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Joseph Kolodka
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F9/455 ; G06F9/50

Abstract:
Methods and systems for database migration from a multitenant database include taking a snapshot of an original database to be migrated with a hot backup process, such that the database is still capable of answering queries during the hot backup process; maintaining a query log of all queries to the tenant database after the hot backup process begins; initializing a new database at a target server using the snapshot; replaying the query log synchronize the new database with the original database; and answering new queries with the new database and not the original database.
Public/Granted literature
- US20130085998A1 LATENCY-AWARE LIVE MIGRATION FOR MULTITENANT DATABASE PLATFORMS Public/Granted day:2013-04-04
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