If the Java process has insufficient memory allocated, you may get OutOfMemory errors when running the graph.
ERROR [DataIngestBatchConsumer-0] - Failed with the following exception: java.lang.OutOfMemoryError: Java heap space Exception in thread "DataIngestBatchConsumer-0" java.lang.OutOfMemoryError: Java heap space
You can avoid these errors by increasing the memory allocated to the Java process running the service. The Edit JRE menu lets you increase the memory size on a global basis.
To avoid OutOfMemory errors: