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From "Yonik Seeley (JIRA)" <>
Subject [jira] [Commented] (SOLR-3830) Rename LFUCache to FastLFUCache
Date Wed, 12 Sep 2012 20:00:08 GMT


Yonik Seeley commented on SOLR-3830:

I have a higher bar for renaming things in config files and APIs.
Solr has a large user base with tons of people that know what things do, and we often overlook
the downside of destroying collective knowledge by renaming things that are only a slight

I personally think Lucene has gone rename-crazy and wouldn't do many of those if it were up
to me...
> Rename LFUCache to FastLFUCache
> -------------------------------
>                 Key: SOLR-3830
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.0-BETA
>            Reporter: Adrien Grand
>            Priority: Minor
> I find it a little disturbing that LFUCache shares most of its behavior (not strictly
bounded size, good at concurrent reads, slow at writes unless eviction is performed in a separate
thread) with FastLRUCache while it sounds like it is the LFU equivalent of LRUCache (strictly
bounded size, synchronized reads, fast writes) so I'd like to rename it to FastLFUCache.
> Maybe we should also rename these Fast*Cache to Concurrent*Cache so that people don't
think that they are better than their non Fast alternatives in every way.

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