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https://issues.apache.org/jira/browse/JENA-800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176125#comment-14176125
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Bruno P. Kinoshita commented on JENA-800:
-----------------------------------------
Hey Bala, while you are on it, do you think you could use some publicly
available data set, or maybe share this last sample data you mentioned too?
Others could use it to help you identify and maybe fix and write unit tests for
the issue.
Thanks
Bruno
> Query response time severily regressed when upgraded Jena TDB to 2.11.2 from
> 0.9.4
> ----------------------------------------------------------------------------------
>
> Key: JENA-800
> URL: https://issues.apache.org/jira/browse/JENA-800
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ, TDB
> Affects Versions: Jena 2.11.2
> Reporter: Bala Kolla
> Attachments: QueryExecutionLog_Jena_Ver_0_9_4.txt,
> QueryExecutionLog_Jena_Ver_2_11_2.txt
>
>
> Many queries, that used to take few milliseconds in 0.9.4, are now taking
> minutes.
> Here is one of the query that's taking few minutes instead of few
> milliseconds. I will capture the algebra before and after and update this
> issue once I have that data.
> PREFIX dcterms: <http://purl.org/dc/terms/>
> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> PREFIX rrmNav: <http://com.ibm.rdm/navigation#>
> PREFIX jfs: <http://jazz.net/xmlns/foundation/1.0/>
> PREFIX rm: <http://www.ibm.com/xmlns/rdm/rdf/>
> SELECT ?url ?created ?creator ?modified ?modifier ?title ?description ?scope
> ?etag
> WHERE
> { GRAPH ?g
> { ?url rdf:type rm:View .
> ?url jfs:resourceContext <https://rmserverurl/projects/projectUUID>
> { ?url dcterms:creator <rmserverurl/user/clmadmin> .
> ?url rrmNav:scope "private"
> }
> UNION
> { ?url rrmNav:scope "public" }
> ?url dcterms:created ?created .
> ?url dcterms:creator ?creator .
> ?url dcterms:modified ?modified .
> ?url dcterms:title ?title .
> ?url dcterms:description ?description .
> ?url rrmNav:scope ?scope .
> ?url jfs:etag ?etag
> OPTIONAL
> { ?url dcterms:modifier ?modifier }
> }
> }
> ORDER BY DESC(?modified) DESC(?url)
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