file locking


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file locking

[′fil ‚läk·iŋ]
(computer science)
A technique that prevents processing of a file by more than one program or user at a time, ensuring that a file in use by one user is made unavailable to others.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

file and record locking

A first-come, first-served technique for managing data in a multiuser environment. The first user to access the file or data record prevents, or locks out, other users from accessing it. After the file or record is updated, it is unlocked and available. File and record locking is an essential part of every database management system (DBMS), document management system and any other system that allows data to be updated by multiple users or applications. See also lock down.
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References in periodicals archive ?
Nasuni also offers global file locking and near real-time replication to other sites, according to Held.
The shared storage runs on standard Gigabit Ethernet technology as well as two system director servers that provide a location to coordinate file access modes (read/write), file locking, range locking, performance data collection, logging, file lookup, and directory change tracking for client systems.
Business Cloud File Server packages are built for teams and provide integration with Active Directory, file locking and permissions, in addition to collaboration, event auditing and user governance features, that work above any mapped cloud.
New features in Version 3.50 include message queues, network shares, file monitoring, auto-resume, file locking, command shortcuts and high availability.
A storage system is required that allows different platforms to share network files but also allow file locking support.
Mason explains what version control is and describes Subversion, access, commands, file locking and binary files, organizing a repository, using tags and branches, creating a project, and third-party code.
* File locking keeps data consistent when multiple readers/writers are operating on the file.
The arrangement, he said, "provides base-level file locking -- check- in/out" -- that communicates a story's current ownership and status.
Files enter the SAN from the IP network, where Storage Tank logs metadata information for file attributes and locations, and enables file locking.
In addition to a portal interface and enterprise search engine, the server provides mainstream document management tools such as version management, file locking, document profiling, and role-based access.
"The basic editing features are much easier to use than any other database editor, and the defaults regarding file locking and code pages are also more intelligently defined.