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Date: Mon, 26 Mar 2007 15:00:32 -0700 (PDT)
From: "Jukka Zitting (JIRA)" <jira@apache.org>
To: dev@jackrabbit.apache.org
Subject: [jira] Commented: (JCR-788) Upgrade to Lucene 2.1
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    [ https://issues.apache.org/jira/browse/JCR-788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484243 ] 

Jukka Zitting commented on JCR-788:
-----------------------------------

Please do share a patch with your changes. It's always easier to judge a change if the actual code is available. BTW, would the modified class still work with Lucene 2.0? I also assume that Lucene 2.1 is compatible with indexes created with 2.0.

I agree that we should try to keep up with Lucene upgrades, but on the other hand I would not want to force too frequent dependency changes on users. If the change works with Lucene 2.0, then existing users wouldn't need to upgrade their dependencies. If not, then the upgrade procedure needs to be documented in the release notes.

If there is no immediate demand for the upgrade, I would rather wait until Jackrabbit 1.3 is branched before doing this.

> Upgrade to Lucene 2.1
> ---------------------
>
>                 Key: JCR-788
>                 URL: https://issues.apache.org/jira/browse/JCR-788
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: query
>            Reporter: Marcel Reutegger
>            Priority: Minor
>
> Lucene 2.1 contains a number of useful enhancements, which could be benefical to jackrabbit:
> - less locking on index updates -> less IO calls
> - introduces FieldSelector -> allows jackrabbit to only load required fields

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