network viewer executing problem

I am using Network Viewer to generate graph, but once my datatable is big(around 1000~2000) it gets stuck at 20% execution.

what is the problem?


at 20% the node starts the layouting thread and writes the images for the outport. Since the included library does not provide any feedback on the layouting and rendering process the node seems to be stuck at 20%. So you might need to give it more time. However for graphs with more then 1000 nodes I would recommend to use an external network viewer e.g. Cytoscape. For detailed information about how to use the external viewer see the network visualization documentation. Currently we only support Cytoscape 2.x. So you will need to install one of these releases e.g. Cytoscape 2.8.3.