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https://issues.apache.org/jira/browse/JENA-1586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16577489#comment-16577489
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ASF subversion and git services commented on JENA-1586:
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Commit a515c111b291ff91df0afd454acf921ddf33a936 in jena's branch
refs/heads/master from [~an...@apache.org]
[ https://git-wip-us.apache.org/repos/asf?p=jena.git;h=a515c11 ]
Merge commit 'refs/pull/459/head' of https://github.com/apache/jena
JENA-1481
JENA-1586
This closes #459.
> Fuseki does not close files of dataset when the dataset is removed
> ------------------------------------------------------------------
>
> Key: JENA-1586
> URL: https://issues.apache.org/jira/browse/JENA-1586
> Project: Apache Jena
> Issue Type: Bug
> Components: Fuseki
> Affects Versions: Jena 3.6.0
> Environment: Debian 9.5 with Jena 3.6.0
> Reporter: Tom den Braber
> Priority: Minor
>
> When you remove a TDB-dataset over HTTP from the Fuseki server, Fuseki does
> not close the file.
> Steps to reproduce:
> First: create a dataset over HTTP with name 'x'. Then, delete the dataset
> with name 'x'. Now inspect the open files of the fuseki process by running
> \{{lsof -p <FUSEKI_PROCESS_ID>}} you see that a dataset with name 'x' is
> still opened by the Fuseki-process.
> Impact:
> When a Fuseki process runs for a long time, and many datasets are created and
> deleted, it will in the end lead to a situation in which you cannot create
> new datasets anymore. Each attempt to creating a dataset will lead to a HTTP
> response code 500 with message 'java.nio.file.FileSystemException:
> /var/lib/fuseki/templates/config-tdb: Too many open files'. Also, keeping the
> files open leads (I suspect) to a higher memory usage than strictly needed.
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