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Posted to dev@marmotta.apache.org by "Sebastian Schaffert (JIRA)" <ji...@apache.org> on 2013/03/19 23:11:15 UTC

[jira] [Created] (MARMOTTA-166) KiWiStore ValueFactory performs badly in multi-threaded, high-load imports

Sebastian Schaffert created MARMOTTA-166:
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             Summary: 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: 3.1-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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