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Date: Tue, 18 May 2010 08:17:09 -0400 (EDT)
From: "Shay Banon (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-2468) reopen on NRT reader should share
 readers w/ unchanged segments
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    [ https://issues.apache.org/jira/browse/LUCENE-2468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868617#action_12868617 ] 

Shay Banon commented on LUCENE-2468:
------------------------------------

Sounds like a good solution for me. I just noticed in trunk that there is also explicit purge from FieldCache when possible. I think it would be great to enable to do this for other caches that are based on it (like the CachingWrapperFilter, but externally written ones as well).

I was thinking of an expert API to allow to add a "CacheEvictionListener" or something similar, which will be called when this happens. What do you think?

> reopen on NRT reader should share readers w/ unchanged segments
> ---------------------------------------------------------------
>
>                 Key: LUCENE-2468
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2468
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: Yonik Seeley
>            Assignee: Michael McCandless
>         Attachments: LUCENE-2468.patch
>
>
> A repoen on an NRT reader doesn't seem to share readers for those segments that are unchanged.
> http://search.lucidimagination.com/search/document/9f0335d480d2e637/nrt_and_caching_based_on_indexreader

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