-MediaWiki uses three object for object caching:
-* $wgMemc, controlled by $wgMainCacheType
-* $parserMemc, controlled by $wgParserCacheType
-* $messageMemc, controlled by $wgMessageCacheType
-If you set CACHE_NONE to one of the three control variable, (default
-value for $wgMainCacheType), MediaWiki still create a MemCacheClient,
-but requests to it are no-ops and we always fall through to the
-database. If the cache daemon can't be contacted, it should also
-disable itself fairly smoothly.
+MediaWiki uses the ObjectCache class to retrieve instances of
+BagOStuff by purpose, controlled by the following variables:
+* $wgMainCacheType
+* $wgParserCacheType
+* $wgMessageCacheType