I got an OutOfMemoryError while loading a turtle file with less than 8000 triples into a named graph, which however already consisted of 45 million triples (details see below - there are a few other graphs in the tdb, with about 100K triples or less).
After almost half an hour, I got the error below. The (virtual) machine has 32 GB of memory, Fuseki2 (exact versions see below) was started with JAVA_OPTIONS="-Xmx6G" Any ideas? 20:50:14 INFO [37] PUT http://localhost:3030/ebstw/data?graph=http://zbw.eu/beta/ebds/ng ... 21:16:07 WARN [37] RC = 500 : GC overhead limit exceeded java.lang.OutOfMemoryError: GC overhead limit exceeded at com.hp.hpl.jena.tdb.base.record.RecordFactory.create(RecordFactory.java:87) at com.hp.hpl.jena.tdb.base.record.RecordFactory.buildFrom(RecordFactory.java:122) at com.hp.hpl.jena.tdb.base.buffer.RecordBuffer._get(RecordBuffer.java:107) at com.hp.hpl.jena.tdb.base.buffer.RecordBuffer.getHigh(RecordBuffer.java:67) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeRecords.shiftRight(BPTreeRecords.java:221) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeNode.shiftRight(BPTreeNode.java:1012) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeNode.rebalance(BPTreeNode.java:832) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeNode.internalDelete(BPTreeNode.java:721) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeNode.internalDelete(BPTreeNode.java:735) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeNode.internalDelete(BPTreeNode.java:735) at com.hp.hpl.jena.tdb.index.bplustree.BPTreeNode.delete(BPTreeNode.java:247) at com.hp.hpl.jena.tdb.index.bplustree.BPlusTree.deleteAndReturnOld(BPlusTree.java:342) at com.hp.hpl.jena.tdb.index.bplustree.BPlusTree.delete(BPlusTree.java:336) at com.hp.hpl.jena.tdb.store.tupletable.TupleIndexRecord.performDelete(TupleIndexRecord.java:70) at com.hp.hpl.jena.tdb.store.tupletable.TupleIndexBase.delete(TupleIndexBase.java:76) at com.hp.hpl.jena.tdb.store.tupletable.TupleTable.delete(TupleTable.java:149) at com.hp.hpl.jena.tdb.store.nodetupletable.NodeTupleTableConcrete.deleteRow(NodeTupleTableConcrete.java:110) at com.hp.hpl.jena.tdb.store.QuadTable.delete(QuadTable.java:81) at com.hp.hpl.jena.tdb.store.DatasetGraphTDB.deleteFromNamedGraph(DatasetGraphTDB.java:112) at com.hp.hpl.jena.sparql.core.DatasetGraphTriplesQuads.delete(DatasetGraphTriplesQuads.java:58) at com.hp.hpl.jena.sparql.core.DatasetGraphTrackActive.delete(DatasetGraphTrackActive.java:131) at com.hp.hpl.jena.sparql.core.DatasetGraphWrapper.delete(DatasetGraphWrapper.java:100) at com.hp.hpl.jena.sparql.core.DatasetGraphMonitor.delete$(DatasetGraphMonitor.java:153) at com.hp.hpl.jena.sparql.core.DatasetGraphMonitor.delete(DatasetGraphMonitor.java:142) at com.hp.hpl.jena.sparql.core.GraphView.performDelete(GraphView.java:153) at com.hp.hpl.jena.graph.impl.GraphBase.delete(GraphBase.java:225) at com.hp.hpl.jena.graph.GraphUtil.remove(GraphUtil.java:308) at com.hp.hpl.jena.graph.impl.GraphBase.clear(GraphBase.java:244) at org.apache.jena.fuseki.servlets.SPARQL_REST_RW.clearGraph(SPARQL_REST_RW.java:226) at org.apache.jena.fuseki.servlets.SPARQL_REST_RW.addDataIntoTxn(SPARQL_REST_RW.java:129) at org.apache.jena.fuseki.servlets.SPARQL_REST_RW.doPutPost(SPARQL_REST_RW.java:102) at org.apache.jena.fuseki.servlets.SPARQL_REST_RW.doPut(SPARQL_REST_RW.java:80) 21:16:07 INFO [37] 500 GC overhead limit exceeded (1.552,938 s) # java -cp /opt/fuseki/fuseki-server.jar tdb.tdbstats --version Jena: VERSION: 2.12.1 Jena: BUILD_DATE: 2014-10-02T16:36:17+0100 ARQ: VERSION: 2.12.1 ARQ: BUILD_DATE: 2014-10-02T16:36:17+0100 RIOT: VERSION: 2.12.1 RIOT: BUILD_DATE: 2014-10-02T16:36:17+0100 TDB: VERSION: 1.1.1 TDB: BUILD_DATE: 2014-10-02T16:36:17+0100 # java -cp /opt/fuseki/fuseki-server.jar tdb.tdbstats --loc=. --graph=http://zbw.eu/beta/ebds/ng (stats (meta (timestamp "2015-09-24T21:49:07.125+02:00"^^<http://www.w3.org/2001/XMLSchema#dateTime>) (run@ "2015/09/24 21:49:07 MESZ") (count 45087163)) (<http://purl.org/dc/elements/1.1/type> 4279019) (<http://purl.org/dc/elements/1.1/creator> 2505439) (<http://purl.org/dc/terms/isPartOf> 189117) (<http://purl.org/dc/terms/source> 4279019) (<http://purl.org/dc/terms/description> 127946) (<http://purl.org/dc/elements/1.1/relation> 2367362) (<http://purl.org/dc/terms/creator> 1907335) (<http://purl.org/ontology/bibo/issn> 57108) (<http://purl.org/dc/elements/1.1/subject> 4263296) (<http://umbel.org/umbel#isLike> 1186896) (<http://purl.org/dc/terms/title> 4279019) (<http://purl.org/dc/terms/contributor> 905965) (<http://purl.org/dc/terms/alternative> 318253) (<http://purl.org/dc/elements/1.1/date> 4242995) (<http://purl.org/dc/terms/subject> 7948468) (<http://purl.org/ontology/bibo/isbn> 617274) (<http://purl.org/dc/elements/1.1/publisher> 1939890) (<http://purl.org/dc/elements/1.1/language> 2851709) (<http://purl.org/dc/elements/1.1/contributor> 821053) (other 0))