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https://issues.apache.org/jira/browse/MINDEXER-72?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17965266#comment-17965266
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Olivier Lamy commented on MINDEXER-72:
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This project has moved from Jira to GitHub Issues. This issue was migrated to
[apache/maven-indexer#540|https://github.com/apache/maven-indexer/issues/540].
> Need a way to use specific FSDirectory implementation during index update
> -------------------------------------------------------------------------
>
> Key: MINDEXER-72
> URL: https://issues.apache.org/jira/browse/MINDEXER-72
> Project: Maven Indexer (Moved to GitHub Issues)
> Issue Type: Improvement
> Affects Versions: 5.1.1
> Reporter: Igor Fedorenko
> Priority: Major
> Fix For: 5.1.2
>
>
> DefaultIndexUpdater#loadIndexDirectory uses Lucene FSDirectory.open, which
> results in suboptimal choice of FSDirectory implementation in some
> environments. For example, MMapDirectory used by default on 64 bit Linux
> allocates potentially significant amount of memory addresses outside of JVM
> heap and can results in heavy operating system swap in some configurations.
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