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Posted to dev@jena.apache.org by "Abhranil Chatterjee (JIRA)" <ji...@apache.org> on 2019/03/19 10:24:00 UTC

[jira] [Created] (JENA-1683) SPARQL Updates get stuck on high concurrency of updates

Abhranil Chatterjee created JENA-1683:
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             Summary: SPARQL Updates get stuck on high concurrency of updates
                 Key: JENA-1683
                 URL: https://issues.apache.org/jira/browse/JENA-1683
             Project: Apache Jena
          Issue Type: Bug
            Reporter: Abhranil Chatterjee
         Attachments: Screen Shot 2019-03-19 at 3.44.56 PM.png

While doing performance test of Jena Fuseki (latest release 3.10.0, using jena-text for lucene index) with a mixed set of sparql-query and sparql-update requests, I found that SPARQL_Update becomes unserviceable. SPARQL_Query still functions normally. Sharing Screen shot of JMC JMX console where threads seem to be WAITING infinitely for acquiring writer lock.  !Screen Shot 2019-03-19 at 3.44.56 PM.png!



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