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Systems and methods for durable database operations in a memory-mapped environment
US8990159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8990159-B2 |
| Application number | US-201213666266-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 1, 2012 |
| Priority date | Nov 1, 2011 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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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.
First claim
Opening claim text (preview).
What is claimed is: 1. A computer-implemented method for creating durability in a memory-mapped database system, comprising acts of: instantiating, in a memory space managed by an operating system of a computer system, a first memory-mapped view of a database, wherein the first memory-mapped view is a protected view, wherein the act of instantiating includes an act of protecting the first memory-mapped view of the database from one or more management operations of the operating sy…
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Physics · mapped topic
Physics · mapped topic
- G06F11/1471Primary
Physics · mapped topic
- G06F16/178Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8990159B2 cover?
- 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 pluralit…
- Who is the assignee on this patent?
- Mongodb Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F11/1471. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).