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From "Jason Rutherglen (JIRA)" <>
Subject [jira] Commented: (SOLR-1513) Use Google Collections in ConcurrentLRUCache
Date Fri, 16 Oct 2009 00:54:31 GMT


Jason Rutherglen commented on SOLR-1513:

I've tuned down my caches to not deal with OOMs and swapping.  I'd rather the cache simply
remove values before swapping or OOMs.  

I think it would simply be an option, which I'd personally always have on! 

> Use Google Collections in ConcurrentLRUCache
> --------------------------------------------
>                 Key: SOLR-1513
>                 URL:
>             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?

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