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https://issues.apache.org/jira/browse/LUCENE-3445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Willnauer updated LUCENE-3445:
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Attachment: LUCENE-3445.patch
I have a couple of smallish improvements to SearcherManager making the hottest
method in SM non-blocking. I added a tryIncRef to index reader that makes is
easier to work with IR refcounts in a non-blocking fashion. I also renamed
SM#get to SM#acquire which seems to be more clear about what happens here (also
kind of stronger than get - so you'd better release it).
> Add SearcherManager, to manage IndexSearcher usage across threads and reopens
> -----------------------------------------------------------------------------
>
> Key: LUCENE-3445
> URL: https://issues.apache.org/jira/browse/LUCENE-3445
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 3.5, 4.0
>
> Attachments: LUCENE-3445.patch, LUCENE-3445.patch, LUCENE-3445.patch
>
>
> This is a simple helper class I wrote for Lucene in Action 2nd ed.
> I'd like to commit under Lucene (contrib/misc).
> It simplifies using & reopening an IndexSearcher across multiple
> threads, by using IndexReader's ref counts to know when it's safe
> to close the reader.
> In the process I also factored out a test base class for tests that
> want to make lots of simultaneous indexing and searching threads, and
> fixed TestNRTThreads (core), TestNRTManager (contrib/misc) and the new
> TestSearcherManager (contrib/misc) to use this base class.
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