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Andy Seaborne commented on JENA-1582: ------------------------------------- The code is (in Jena 3) trying to write in "pretty RDF/XML" whereas in 2.13.0 the default was plain RDF/XML. Pretty RDF/XML can be expensive (in time and space) Try: {code:java} try (OutputStream out = new FileOutputStream(f.toFile())) { RDFDataMgr.write(out, model, RDFFormat.RDFXML_PLAIN); } {code} Other points: Buffering the output might help a little. It is better to use Java `InputStream` and `OutputStream` than Java `Reader` or `Writer` to write RDF, especially RDF/XML. > Model#write OutOfMemory GC limit exceeded > ----------------------------------------- > > Key: JENA-1582 > URL: https://issues.apache.org/jira/browse/JENA-1582 > Project: Apache Jena > Issue Type: Bug > Components: Core > Affects Versions: Jena 3.8.0 > Reporter: Arnaud Jardine > Priority: Major > Attachments: sources.zip > > > Hello, > Actually we try to migrate a project from an old version of Jena (2.13.0) to > a more recent but we experienced some issue when we try to write the model > with Model#write. > With Jena 2.13.0 the model is written quite fast on the disk but with Jena > 3.8.0, the process seems stuck into a loop and we reach an OOM Exception : GC > limit exceeded. > I've attach a small project to reproduce the problem. It contains the model > (http___publications_europa_eu_resource_authority_language.rdf) and the code > which simulate our behavior. > Thanks for your help, > Arnaud. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)