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https://issues.apache.org/jira/browse/LUCENE-831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12649385#action_12649385
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Alex Vigdor commented on LUCENE-831:
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To be honest, the cache never successfully refilled before the patch - or at
least I gave up after waiting 10 minutes. I was about to give up on sorting.
It could have to do with the fact that we're running with a relatively modest
amount of RAM (768M) given our index size. But with the patch at least sorting
is a realistic option!
I will look at adding the warming to my own code as you suggest; it is another
peculiarity of this project that I can't know in the code what fields will be
used for sorting, but I'll just track the searches coming through and aggregate
any sorts they perform into a warming query.
> Complete overhaul of FieldCache API/Implementation
> --------------------------------------------------
>
> Key: LUCENE-831
> URL: https://issues.apache.org/jira/browse/LUCENE-831
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Hoss Man
> Fix For: 3.0
>
> Attachments: fieldcache-overhaul.032208.diff,
> fieldcache-overhaul.diff, fieldcache-overhaul.diff,
> LUCENE-831.03.28.2008.diff, LUCENE-831.03.30.2008.diff,
> LUCENE-831.03.31.2008.diff, LUCENE-831.patch, LUCENE-831.patch,
> LUCENE-831.patch
>
>
> Motivation:
> 1) Complete overhaul the API/implementation of "FieldCache" type things...
> a) eliminate global static map keyed on IndexReader (thus
> eliminating synch block between completley independent IndexReaders)
> b) allow more customization of cache management (ie: use
> expiration/replacement strategies, disk backed caches, etc)
> c) allow people to define custom cache data logic (ie: custom
> parsers, complex datatypes, etc... anything tied to a reader)
> d) allow people to inspect what's in a cache (list of CacheKeys) for
> an IndexReader so a new IndexReader can be likewise warmed.
> e) Lend support for smarter cache management if/when
> IndexReader.reopen is added (merging of cached data from subReaders).
> 2) Provide backwards compatibility to support existing FieldCache API with
> the new implementation, so there is no redundent caching as client code
> migrades to new API.
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