Hi all, some answers below to the many questions. 1. This Fuseki instance is based on the image maintained at DockerHub by the secoresearch account. Copies of the Dockerfile and tdb.cfg files are at the end of this message. There is no other code involved.
2. The image is deployed to an Openshift cluster with a default resource base of 1 CPU and 1 GB of RAM. The intention is to use Fuseki as component of a information system easy to deploy by institutions in developing countries, where resources may be limited and know-how lacking. These resources have shown sufficient to run software such as Postgres or MapServer. 3. Openshift provides a user interface to easy monitor the resources taken up by a running container (aka pod), no code is involved in this monitoring. It is also possible to launch a shell session into the container and monitor that way. At the end of the message is a print out from top showing that nothing else is running in this particular container. All memory is used eihter by Fuseki or the system. 4. The datasets I have been using to test Fuseki were created with rdflib and are saved as XML/RDF. Each contains some dozens of objects of interst and respective relations from a larger database. The largest of these RDF files contains just under 100 000 triples and occupies 20 MB in disk. I uploaded a new graph with more meaningfull labels (https://pasteboard.co/J4cfPM9.png). Each point in the graph is a dataset, in the xx axis (horizontal) is the number of triples in the dataset, in the yy axis (vertical) is the additional memory required by Fuseki once the dataset is added. Again, note that all datasets are uploaded in persistent mode. 5. Regarding the JVM, the information in the manual simply refers that the heap size is somewhat dependent on the kind of queries run. But the problem on this end is with dataset upload. At this stage I do not know what or how to modify in the JVM set-up. Thank you for your help. Dockerfile ---------- FROM secoresearch/fuseki:latest # Set environment variables ENV ADMIN_PASSWORD toto ENV ENABLE_DATA_WRITE true ENV ENABLE_UPDATE true ENV ENABLE_UPLOAD true # Add in config files COPY ./tbd.cfg $FUSEKI_BASE/tbd.cfg COPY ./tbd.cfg $FUSEKI_HOME/tbd.cfg tbf.cfg ------- { "tdb.node2nodeid_cache_size" : 50000 , "tdb.nodeid2node_cache_size" : 250000 , } top --- Mem: 39251812K used, 26724204K free, 21104K shrd, 58340K buff, 23792776K cached CPU: 9% usr 5% sys 0% nic 84% idle 0% io 0% irq 0% sirq Load average: 2.02 1.93 1.75 3/4355 114 PID PPID USER STAT VSZ %VSZ CPU %CPU COMMAND 1 0 9008 S 20528m 30% 4 0% java -cp *:/javalibs/* org.apache.jena.fuseki.cmd.FusekiCmd 109 102 9008 S 1520 0% 7 0% /bin/sh 102 0 9008 S 1512 0% 1 0% /bin/sh -c TERM="xterm-termite" /bin/sh 110 109 9008 R 1508 0% 1 0% top -- Luís
