Manual:$wgRevisionCacheExpiry

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Memcached settings: $wgRevisionCacheExpiry
Cache extracted revision text in MemCached.
Introduced in version:1.8.0 (r16549)
Removed in version:still in use
Allowed values:(integer)
Default value:86400 * 7 (MediaWiki 1.28+)
0 (1.8-1.27)

DetailsEdit

Revision text may be cached in the main WAN cache to reduce load on external storage servers and object extraction overhead for frequently-loaded revisions.

Set to 0 to disable, or number of seconds before cache expiry.

ChangesEdit

Prior to MediaWiki 1.28 this setting defaulted to 0.