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From: Apache Wiki <wikidiffs@apache.org>
To: Apache Wiki <wikidiffs@apache.org>
Date: Mon, 19 Dec 2011 16:23:33 -0000
Message-ID: <20111219162333.50581.22705@eos.apache.org>
Subject: 
 =?utf-8?q?=5BSolr_Wiki=5D_Update_of_=22SolrCaching=22_by_ShawnHeisey?=
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The "SolrCaching" page has been changed by ShawnHeisey:
http://wiki.apache.org/solr/SolrCaching?action=3Ddiff&rev1=3D30&rev2=3D31

Comment:
Added LFUCache.  Removed ".search" from class names for caches.

  =

  The ''current'' Index Searcher serves requests and when a ''new'' searche=
r is opened, the new one is auto-warmed while the current one is still serv=
ing external requests. When the new one is ready, it will be ''registered''=
 as the ''current'' searcher and will handle any new search requests.  The =
old searcher will be closed after all request it was servicing finish.   Th=
e current Searcher is used as the source of auto-warming. When a new search=
er is opened, its caches may be prepopulated or "autowarmed" using data fro=
m caches in the old searcher.
  =

- There are currently two cache implementations =E2=80=94 solr.search.LRUCa=
che (LRU =3D Least Recently Used in memory), and solr.search.FastLRUCache.
+ There are currently three cache implementations =E2=80=94 solr.LRUCache (=
LRU =3D Least Recently Used in memory), solr.FastLRUCache, and solr.LFUCach=
e (Least Frequenty Used).
  =

- <!> [[Solr1.4]] FastLRUCache is a 1.4 feature
+ <!> [[Solr1.4]] FastLRUCache is a 1.4 feature =

+ <!> [[Solr4.0]] LFUCache is a 4.0 feature
  =

  =3D Common Cache Configuration Parameters =3D
  Caching configuration is set-up in the Query section of [[SolrConfigXml|s=
olrconfig.xml]].  For most caches, you can set the following parameters....
@@ -17, +18 @@

  =3D=3D class =3D=3D
  The `SolrCache` implementation you wish to use .The available implementat=
ions are
  =

-  * `solr.search.LRUCache`
+  * `solr.LRUCache`
-  * `solr.search.FastLRUCache`
+  * `solr.FastLRUCache`
+  * `solr.LFUCache`
  =

- <!> [[Solr1.4]] FastLRUCache is a 1.4 feature
+ <!> [[Solr1.4]] FastLRUCache is a 1.4 feature =

+ <!> [[Solr4.0]] LFUCache is a 4.0 feature
  =

  =3D=3D size =3D=3D
  The maximum number of entries in the cache.