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https://issues.apache.org/jira/browse/SOLR-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erick Erickson updated SOLR-2906:
---------------------------------
Attachment: SOLR-2906.patch
Updated patch that divides by 2 and adds a unit test for aging out.
Shawn:
Could you add in the optional time decay as Yonik suggests? I agree that it
seems like the right thing is to have this on by default. At that point, I
think it'll be ready to check in. We can add documentation as we can.
We could also check it in as is and raise another JIRA.
> Implement LFU Cache
> -------------------
>
> Key: SOLR-2906
> URL: https://issues.apache.org/jira/browse/SOLR-2906
> Project: Solr
> Issue Type: Sub-task
> Components: search
> Affects Versions: 3.4
> Reporter: Shawn Heisey
> Assignee: Erick Erickson
> Priority: Minor
> Attachments: ConcurrentLFUCache.java, LFUCache.java, SOLR-2906.patch,
> SOLR-2906.patch, SOLR-2906.patch, SOLR-2906.patch, SOLR-2906.patch,
> TestLFUCache.java
>
>
> Implement an LFU (Least Frequently Used) cache as the first step towards a
> full ARC cache
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