Invention Grant
US08990159B2 Systems and methods for durable database operations in a memory-mapped environment
有权
在内存映射环境中持久数据库操作的系统和方法
- Patent Title: Systems and methods for durable database operations in a memory-mapped environment
- Patent Title (中): 在内存映射环境中持久数据库操作的系统和方法
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Application No.: US13666266Application Date: 2012-11-01
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Publication No.: US08990159B2Publication Date: 2015-03-24
- Inventor: Dwight Merriman , Eliot Horowitz , Mathias Stearn
- Applicant: MongoDB, Inc.
- Applicant Address: US NY New York
- Assignee: MongoDB, Inc.
- Current Assignee: MongoDB, Inc.
- Current Assignee Address: US NY New York
- Agency: Lando & Anastasi, LLP
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F11/14
Abstract:
A durable memory-mapped database system includes a first memory-mapped view of a database, a second memory-mapped view of the database, a journal buffer and a journal. The first memory-mapped view of the database is a protected view and includes copies of a plurality of datafiles from the database. The second memory-mapped view of the database is a write view and includes copies of the plurality of datafiles. The journal buffer is a buffer in random access memory configured to record datafile updates. The journal is configured to periodically receive recorded datafile updates from the journal buffer.
Public/Granted literature
- US20130110771A1 SYSTEMS AND METHODS FOR DURABLE DATABASE OPERATIONS IN A MEMORY-MAPPED ENVIRONMENT Public/Granted day:2013-05-02
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