Fuseki SPARQL server
Run Fuseki as a systemd service
As root got
cd /usr/local/src
Download & untar
wget https://apache.redkiwi.nl/jena/binaries/apache-jena-fuseki-3.15.0.tar.gz tar xfvz apache-jena-fuseki-3.15.0.tar.gz cd apache-jena-fuseki-3.15.0
Fuseki File Layout
I will follow the Filesystem layout suggested by the official documentation for [1] for running Fuseki as a service
Environment Variable Default Setting FUSEKI_HOME /usr/share/fuseki FUSEKI_BASE /etc/fuseki
- FUSEKI_HOME(Distribution area) – a is essentially the fuseki-server binary and a few helper scripts
- FUSEKI_BASE(Runtime area) – is a directory that contains the configuration, dbs, logs - which should be backup and not changed with updates of the Fuseki binaries.
So let's go ahead and create those directories and move the corresponding files to the right dir
mkdir /usr/share/fuseki mkdir /etc/fuseki
mv {fuseki,fuseki-server,fuseki-server.bat,fuseki-server.jar,fuseki.war,bin,webapp} /usr/share/fuseki/
mv -r run/* /etc/fuseki/
And we can make a test run by running:
/usr/share/fuseki/fuseki-server
And checking the if the server is up by visiting http://localhost:3030/index.html
Service file
Inside the untared dir /usr/local/src/apache-jena-fuseki-3.15.0 you can find the file fuseki.service
This file should be copied to /etc/system.d/system and edited in order to run Fuseki as a service. The file itself is quite self explanatory, so I will only write here my changes, which match the file system structure I went for.
cp fuseki.service /etc/systemd/system
vi /etc/systemd/system/fuseki.service
Environment=FUSEKI_HOME=/usr/share/fuseki Environment=FUSEKI_BASE=/etc/fuseki ExecStart=/usr/share/fuseki/fuseki-server User=root
Enable and run the service:
systemctl enable fuseki systemctl start fuseki
Check it's status
systemctl status fuseki
And again check its web UI at http://localhost:3030
- you try to create a db a make and perform and INSERT statement, which be stored in
/etc/fuseki/databases/databasename/
Config
Security
Fuseki security settings are defined in file /etc/fuseki/shiro.ini by https://jena.apache.org/documentation/fuseki2/fuseki-security.html
Here I will change the default admin password
[users] admin=changedefaultpwd
curl http://localhost:3030/test -X POST --data 'update=PREFIX+foaf%3A+%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2F%3E%0APREFIX+country%3A+%3Chttp%3A%2F%2Feulersharp.sourceforge.net%2F2003%2F03swap%2Fcountries%23%3E%0A%0AINSERT+DATA%0A%7B%0A++country%3Azy+foaf%3Aname+%22Zyz%22%40en+.+%0A%7D' -H 'Accept: text/plain,*/*;q=0.9'
SEE MORE in
Test Query/Update
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX country: <http://eulersharp.sourceforge.net/2003/03swap/countries#>
SELECT *
{
?o ?p ?v.
}
<pre>
Or via curl:
curl http://localhost:3030/test -X POST --data 'query=PREFIX+foaf%3A+%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2F%3E%0APREFIX+country%3A+%3Chttp%3A%2F%2Feulersharp.sourceforge.net%2F2003%2F03swap%2Fcountries%23%3E%0A%0ASELECT+*%0A%7B%0A++%3Fo+%3Fp+%3Fv.+%0A%7D' -H 'Accept: application/sparql-results+json,*/*;q=0.9'
<pre>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX country: <http://eulersharp.sourceforge.net/2003/03swap/countries#>
INSERT DATA
{
country:ou foaf:name "Ouoaoo"@en .
}
Or via curl:
curl http://localhost:3030/test -X POST --data 'update=PREFIX+foaf%3A+%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2F%3E%0APREFIX+country%3A+%3Chttp%3A%2F%2Feulersharp.sourceforge.net%2F2003%2F03swap%2Fcountries%23%3E%0A%0AINSERT+DATA%0A%7B%0A++country%3Aou+foaf%3Aname+%22Ouoaoo%22%40en+.+%0A%7D' -H 'Accept: text/plain,*/*;q=0.9'
From other machine:
This is still succeeding - TODO: adjust settings to allow only update from Localhost curl http://10.0.20.2:3030/test -X POST --data 'update=PREFIX+foaf%3A+%3Chttp%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2F%3E%0APREFIX+country%3A+%3Chttp%3A%2F%2Feulersharp.sourceforge.net%2F2003%2F03swap%2Fcountries%23%3E%0A%0AINSERT+DATA%0A%7B%0A++country%3Aou+foaf%3Aname+%22Ouoaoo%22%40en+.+%0A%7D' -H 'Accept: text/plain,*/*;q=0.9'
- /test/upload
Logging
Backups
Errors
2020-05-19 20:47:16,859 main ERROR Unable to locate plugin type for Loggers 2020-05-19 20:47:16,859 main ERROR Unable to locate plugin type for Appenders 2020-05-19 20:47:16,859 main ERROR Unable to locate plugin type for ThresholdFilter 2020-05-19 20:47:16,861 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,861 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,861 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,862 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,862 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,862 main ERROR Unable to locate plugin for AppenderRef 2020-05-19 20:47:16,862 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,862 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,863 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,863 main ERROR Unable to locate plugin for Logger 2020-05-19 20:47:16,863 main ERROR Unable to locate plugin for AppenderRef 2020-05-19 20:47:16,863 main ERROR Unable to locate plugin for Root 2020-05-19 20:47:16,863 main ERROR Unable to locate plugin for Loggers 2020-05-19 20:47:16,864 main ERROR Unable to locate plugin for PatternLayout 2020-05-19 20:47:16,864 main ERROR Unable to locate plugin for Console 2020-05-19 20:47:16,864 main ERROR Unable to locate plugin for PatternLayout 2020-05-19 20:47:16,864 main ERROR Unable to locate plugin for Console 2020-05-19 20:47:16,864 main ERROR Unable to locate plugin for Appenders 2020-05-19 20:47:16,865 main ERROR Unable to locate plugin for ThresholdFilter
systemctl daemon-reload
