[SOLR-1513] Use Google Collections in ConcurrentLRUCache

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.4
• Fix Version/s: 4.9, 6.0
• Component/s: search
• Assignee: Unassigned
• Reporter: Jason Rutherglen
• Created: 15/Oct/09 22:42
• Updated: 09/May/16 18:53

Description

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/