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https://issues.apache.org/jira/browse/SOLR-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13171641#comment-13171641
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Erick Erickson commented on SOLR-2906:
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What do the collective people who actually know the code think about this
patch? From my perspective, the LFU is a classic alternative to LRU and seems
like a fine addition. If there are no objections, I'll volunteer to commit this.
Shawn:
This is the kind of thing that could use two things:
1> text for CHANGES.txt describing the new functionality. If you could attach
that as a separate patch file (or just e-mail it to me) that would be great.
That file changes rapidly enough that I like to add the text at check-in time,
it seems easier.
2> Adding a description to the Wiki since this is new functionality. Perhaps in
http://wiki.apache.org/solr/SolrCaching?
> 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
> Priority: Minor
> Attachments: ConcurrentLFUCache.java, LFUCache.java, 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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