blankdots / docker-semanticwebapps Goto Github PK

Upload for WebVOWL does not work in container, working on a fix in order to run jar in python.

Hi,

First thanks for your contribution on jena-fuseki Dockerfile 👍

I am trying to understand the usage of TDB.dump/loader command line utility to create backups and restoring them properly.

Backups:

• of course possible from Jena Admin UI with backup button...
• with the tdbdump OR tdbbackup CLI command ( https://jena.apache.org/documentation/tdb/commands.html )

=> Is my command correct (I've seen a twin command in the javadoc named 'tdbbackup', same result) ?
=> As you can see I got this JVM lock exception already talked in the FAQs. But there is no other explanation on how to proceed... So any suggestion (already tried with the running 'fuseki-server' script) ?

Restores

I think the right command of restoring gziped nquads dumps with tdbloader is :

bash-4.3# java -cp $FUSEKI_HOME/fuseki-server.jar tdb.tdbloader --loc=$FUSEKI_BASE/databases/LoterreVocabularies $FUSEKI_BASE/backups/LoterreVocabularies_BKP.nq.gz

=> I got the same TDBException about

org.apache.jena.tdb.TDBException: Can't open database at location /database/databases/LoterreVocabularies/ as it is already locked by the process with PID 1. TDB databases do not permit concurrent usage across JVMs so in order to prevent possible data corruption you cannot open this location from the JVM that does not own the lock for the dataset

Thanks for help.

Test Marmotta docker image found at https://issues.apache.org/jira/browse/MARMOTTA-588 with live instance.

Investigate the enhancement of WebProtege with WebVOWL and see if the integration with Blazegraph is possible https://github.com/VisualDataWeb/webprotege

The Maven build fails in webprotege docker image.