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https://issues.apache.org/jira/browse/MARMOTTA-166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608976#comment-13608976
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Sebastian Schaffert commented on MARMOTTA-166:
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This issue has mostly been fixed with the latest commits
> KiWiStore ValueFactory performs badly in multi-threaded, high-load imports
> --------------------------------------------------------------------------
>
> Key: MARMOTTA-166
> URL: https://issues.apache.org/jira/browse/MARMOTTA-166
> Project: Marmotta
> Issue Type: Bug
> Components: Triple Store
> Reporter: Sebastian Schaffert
> Assignee: Sebastian Schaffert
> Priority: Minor
> Fix For: 3.0-incubating
>
>
> The KiWiStore currently uses a single dedicated database connection for
> implementing the value factory. On highly parallel systems with parallel
> imports, this can be the single bottleneck, because the value factory
> potentially needs to check the database for every node that is created.
> To improve the performance, we could instead use a pool of value factories,
> each having their own database connection.
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