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https://issues.apache.org/jira/browse/JCR-788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484230
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David Johnson commented on JCR-788:
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I have upgraded my local version to Lucene 2.1
I needed to change 2 files - the pom.xml of jackrabbit-core and
org.apache.jackrabbit.core.query.lucene.PersistentIndex.java
While all tests pass, I am not sure if my change to PersistentIndex is right -
specifically I commented out the code pertaining to COMMIT_LOCK as this seems
to have been removed or moved to another class in Lucene 2.1
Is this worth a patch? As Marcel stated, this appears to be a good upgrade, so
I would like to get this in sooner rather than later.
> 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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