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Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2019/04/12 17:33:00 UTC

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

     [ https://issues.apache.org/jira/browse/JENA-1683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne closed JENA-1683.
-------------------------------

> 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
>            Priority: Major
>         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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