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https://issues.apache.org/jira/browse/SOLR-571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12859211#action_12859211
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Noble Paul commented on SOLR-571:
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S\o 50%is the 50% of cache size. so it should be finite. 
OK got it

> LRUCache autowarmCount should support percentages
> -------------------------------------------------
>
>                 Key: SOLR-571
>                 URL: https://issues.apache.org/jira/browse/SOLR-571
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Hoss Man
>
> a recent thread reminded me of an old idea that never got implemented...
> the autowarmCount for LRUCaches should support "percentages" which get 
> evaluated relative the current size of the cache when warming happens.  
> in this way, a Solr instance might be configured with autowarmCount="50%" to 
> autowarm the top half of the queries ... a master machine might be configured 
> this way to give some autowarming if it is inadvertently being queried, but 
> things won't be maintained in the caches in perpetuity ... each subsequent 
> cache instance would have fewer and fewer of the "old" queries warmed 
> automatically.

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