|Memcached settings: $wgMemCachedServers|
|Introduced in version:||pre 1.1.0|
|Removed in version:||still in use|
|Other settings: Alphabetical | By function|
Array of memcached servers (for use with the memcached memory-based object store)
To use multiple servers (physically separate boxes or multiple caches on one machine on a large-memory x86 box), just add more items to the array. To increase the weight of a server (say, because it has twice the memory of the others and you want to spread usage evenly), make its entry a subarray:
$wgMemCachedServers = [ "127.0.0.1:11211", # one gig on this box [ "192.168.0.1:11211", 2 ] # two gigs on the other box ];
You can have multiple wikis point to the same Memcached server, as long as each have different wiki-ids ($wgDBname). Certain cache keys are intentionally shared in such a scenario, such as rate limiting stuff.
More information in docs/memcached.md.