Hi there, what is your Neo4j version and did you set any special JVM flags or neo4j.properties?
Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/ - Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Tue, Aug 30, 2011 at 10:57 AM, Reza Ameri <[email protected]> wrote: > Hi, > I've written the code below to create 10M nodes, without any relations. > But, > it has memory exception that couldn't solve. would you please help me. > > Also I want to show this graph visually. I used Gremlin and Jung to view > the > graph, but it either did not work even for 1M nodes! Any Idea About this > one? > > Thank you :) > > Code of BatchInserter: > > > public void batchInsertor(String graphPath) > { > BatchInserter inserter = null; > BatchInserterIndexProvider indexProvider = null; > BatchInserterIndex index = null; > try{ > inserter = new BatchInserterImpl(graphPath); > indexProvider = new LuceneBatchInserterIndexProvider( inserter ); > index = indexProvider.nodeIndex( "index", MapUtil.stringMap( "type", > "exact" > ) ); > for(int i=0; i<10000000; i++) > { > index.setCacheCapacity("name", 100000 ); > Map<String, Object> properties = MapUtil.map( "name", String.valueOf(i)); > long node = inserter.createNode(properties); > index.add( node, properties ); > if(i%1000000 == 0) > { > System.out.println("Check Point: " + i); > } > } > indexProvider.shutdown(); > inserter.shutdown(); > } > finally{ > indexProvider.shutdown(); > inserter.shutdown(); > } > } > > > Error: > > Exception in thread "main" java.lang.IllegalStateException: this writer hit > an OutOfMemoryError; cannot flush > at > org.apache.lucene.index.IndexWriter.doFlushInternal(IndexWriter.java:3521) > at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3509) > at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3500) > at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:2271) > at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:2249) > at > > org.neo4j.index.impl.lucene.LuceneBatchInserterIndex.closeWriter(LuceneBatchInserterIndex.java:275) > at > > org.neo4j.index.impl.lucene.LuceneBatchInserterIndex.shutdown(LuceneBatchInserterIndex.java:350) > at > > org.neo4j.index.impl.lucene.LuceneBatchInserterIndexProvider.shutdown(LuceneBatchInserterIndexProvider.java:144) > > > > Code of Visualization: > > public JPanel showBatchInserted(String graphPath) > { > neo = new Neo4jGraph(graphPath); > JPanel graphPanel=new JPanel(); > GraphJung g = new GraphJung(neo); > Layout<Vertex, Edge> layout = new CircleLayout<Vertex,Edge>(g); > layout.setSize(new Dimension(1500,1000)); > viz = new VisualizationViewer<Vertex, Edge>(layout); > viz.setBackground(Color.WHITE); > viz.setAutoscrolls(true); > viz.setName("visualizationViewer"); > viz.setSize(new Dimension(1500,1000)); > AnnotatingGraphMousePlugin<Vertex, Edge> an=new > AnnotatingGraphMousePlugin<Vertex, Edge>(viz.getRenderContext()); > AnnotatingModalGraphMouse<Vertex,Edge> gm = new > AnnotatingModalGraphMouse<Vertex,Edge>(viz.getRenderContext(), > an); > > gm.setMode(ModalGraphMouse.Mode.PICKING); > viz.setGraphMouse(gm); > JMenuBar menuBar = new JMenuBar(); > JMenu modeMenu = gm.getModeMenu(); > modeMenu.setText("Mouse Mode"); > modeMenu.setIcon(null); > modeMenu.setPreferredSize(new Dimension(80,20)); > menuBar.add(modeMenu,BorderLayout.NORTH); > > GraphZoomScrollPane graphScroll=new GraphZoomScrollPane(viz); > graphScroll.add(menuBar,BorderLayout.NORTH); > graphScroll.add(viz,BorderLayout.CENTER); > graphScroll.setName("graphScroll"); > graphPanel.add(graphScroll,BorderLayout.CENTER); > > > Transformer<Vertex,Paint> vertexPaint = new Transformer<Vertex,Paint>() { > public Paint transform(Vertex i) { > return Color.RED; > } > }; > Transformer<Vertex,Icon> vertexIcon = new Transformer<Vertex,Icon>() { > public Icon transform(Vertex i) { > ImageIcon icon=new ImageIcon("icon/icon.png"); > return icon; > } > }; > float dash[] = {0.1f}; > final Stroke edgeStroke = new BasicStroke(1.0f, BasicStroke.CAP_BUTT, > BasicStroke.JOIN_MITER, 10.0f, dash, 5.0f); > Transformer<Edge, Stroke> edgeStrokeTransformer = > new Transformer<Edge, Stroke>() { > public Stroke transform(Edge s) { > return edgeStroke; > } > }; > > Transformer<Edge,Paint> edgePaint = new Transformer<Edge,Paint>() { > > public Paint transform(Edge arg0) { > // TODO Auto-generated method stub > return Color.BLUE; > } > }; > Transformer<Edge, Paint> arrowColor=new Transformer<Edge, Paint>() { > > @Override > public Paint transform(Edge arg0) { > // TODO Auto-generated method stub > return Color.BLUE; > } > };;; > Transformer<Edge, Paint> arrowDraw=new Transformer<Edge, Paint>() { > > @Override > public Paint transform(Edge arg0) { > // TODO Auto-generated method stub > return Color.BLUE; > } > };;; > Transformer<Edge, Font> fontEdge=new Transformer<Edge, Font>() { > > @Override > public Font transform(Edge arg0) { > Font temp=new Font(Font.MONOSPACED,Font.ITALIC, 12); > return temp; > } > };;; > Transformer<Vertex, Font> font=new Transformer<Vertex, Font>() { > > @Override > public Font transform(Vertex arg0) { > // TODO Auto-generated method stub > Font temp=new Font(Font.MONOSPACED,Font.ITALIC, 12); > > return temp; > } > };;; > Transformer<Vertex, String> vertexLabelTransformer = new > Transformer<Vertex, > String>() { > public String transform(Vertex vertex) { > return (String) vertex.getProperty(PROPERTY_NODE_NAME); > } > }; > Transformer<Edge, String> edgeLabelTransformer = new Transformer<Edge, > String>() { > public String transform(Edge edge) { > return > > edge.getProperty(PROPERTY_EDGE_TYPE)+",cost="+String.valueOf(edge.getProperty(PROPERTY_EDGE_COST))+",time="+String.valueOf(edge.getProperty(PROPERTY_EDGE_TIME));//edge.getLabel() > ; > } > }; > viz.getRenderContext().setEdgeLabelTransformer(edgeLabelTransformer); > viz.getRenderContext().setVertexLabelTransformer(vertexLabelTransformer); > viz.getRenderContext().setEdgeDrawPaintTransformer(edgePaint); > viz.getRenderContext().setVertexIconTransformer(vertexIcon); > viz.getRenderContext().setVertexFillPaintTransformer(vertexPaint); > viz.getRenderContext().setEdgeStrokeTransformer(edgeStrokeTransformer); > viz.getRenderer().getVertexLabelRenderer().setPosition(Position.N); > viz.getRenderContext().setArrowFillPaintTransformer(arrowColor); > viz.getRenderContext().setArrowDrawPaintTransformer(arrowDraw); > viz.getRenderContext().setVertexFontTransformer(font); > viz.getRenderContext().setEdgeFontTransformer(fontEdge); > return graphPanel; > } > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
