Use Google Collections in ConcurrentLRUCache
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Key: SOLR-1513
URL: https://issues.apache.org/jira/browse/SOLR-1513
Project: Solr
Issue Type: Improvement
Components: search
Affects Versions: 1.4
Reporter: Jason Rutherglen
Priority: Minor
Fix For: 1.5
ConcurrentHashMap is used in ConcurrentLRUCache. The Google Colletions
concurrent map implementation allows for soft values that are great for caches
that potentially exceed the allocated heap. Though I suppose Solr caches
usually don't use too much RAM?
http://code.google.com/p/google-collections/
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