Manual:$wgInvalidateCacheOnLocalSettingsChange
From MediaWiki.org
| Cache: $wgInvalidateCacheOnLocalSettingsChange | |
|---|---|
| Setting this to true will invalidate all cached pages whenever LocalSettings.php is changed |
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| Introduced in version: | 1.17.0 (r77878) |
| Removed in version: | still in use |
| Allowed values: | boolean |
| Default value: | true |
Other settings: Alphabetical | By Function
Details[edit | edit source]
Setting this to true will invalidate all cached pages whenever LocalSettings.php is changed. This is useful so that if you install a new extension, any old pages that were cached before the extension was installed are re-rendered.
On high-traffic wikis, this should be set to false, to avoid the need to check the file modification time, and to avoid the performance impact of unnecessary cache invalidations.
Note: In older versions of MediaWiki, this was done by default in LocalSettings.php using code like $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', @filemtime( __FILE__ ) ) );
