|This deprecated feature should no longer be used, but is still available for reasons of backwards compatibility. This feature was deprecated in version 1.21.0.|
|Shared DB settings: $wgSharedDB|
|The name of the shared database.
|Introduced in version:||1.4.0|
|Deprecated in version:||1.21.0 (Gerrit change 27137; git #ac3a0a58)|
|Removed in version:||still in use|
|Other settings: Alphabetical | By function|
LBFactory::getMainLB()to access remote databases. Using
LBFactory::getMainLB()allows the shared database to reside on separate servers to the wiki's own database, with suitable configuration of $wgLBFactoryConf.
The name of the shared database.
Shared database for multiple wikis. Commonly used for storing a user table for single sign-on (actually not real SSO, since the user may still have to log in into each wiki separately, but at least registration has to be done only once). The server for this database must be the same as for the main database. From 1.13 on you may use $wgSharedPrefix to specify a separate prefix for this database.
See Manual:Shared database for usage information.