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How Can I make a statistics,i.e:how many vertexes or edges?

spirit...@...
 

My graph has about 100 million vertexes and 200 million edges. But if use the following code, it is too slow.
GraphTraversal<Vertex, Long> countV = traversal.V().count();
while (countV.hasNext()){
    System.out.println("countV:" + countV.next());
}

GraphTraversal<Edge, Long> countE = traversal.E().count();
while (countE.hasNext()){
    System.out.println("countE:" + countE.next());
}

I want to computer the count of vertex or edge directly through Hbase. The following code is:
 SnapshotCounter.HBaseGetter entryGetter = new SnapshotCounter.HBaseGetter();
        EntryList entryList = StaticArrayEntryList.ofBytes(
                result.getMap().get(Bytes.toBytes("e")).entrySet(),
                entryGetter);
        StandardTitanTx tx = (StandardTitanTx) graph.newTransaction();
        System.out.println("Entry list size: " + entryList.size());
        int cnt = 0;
//        IDInspector inspector = graph.getIDInspector();
        for (Entry entry : entryList) {
            RelationCache relation = graph.getEdgeSerializer().readRelation(entry, false, tx);
//            Direction direction = graph.getEdgeSerializer().parseDirection(entry);
//            System.out.println("Direction is:" + direction.name());
//            System.out.println("relation is:" + relation);

//            System.out.println("numProperties: " + relation.numProperties());
//            Iterator<LongObjectCursor<Object>> longObjectCursorIterator = relation.propertyIterator();
//            LongObjectCursor<Object> next = longObjectCursorIterator.next();
//            System.out.println("key is:" + next.key);
//            System.out.println("value is:" + next.value);
//            System.out.println("next.toString is:" + next.toString());



            RelationType type = tx.getExistingRelationType(relation.typeId);

            Iterator<Edge> edgeIterator1 = type.edges(Direction.BOTH);
            while (edgeIterator1.hasNext()){
                Edge next11 = edgeIterator1.next();
                System.out.println("relType is :" + next11.property("relType"));
            }

//             if (type.isEdgeLabel() && !tx.getIdInspector().isEdgeLabelId(relation.relationId)){
//            if (type.isEdgeLabel() &&  !graph.getIDManager().isEdgeLabelId(relation.relationId) &&
//                    !tx.getIdInspector().isRelationTypeId(type.longId())) {
            if (type.isEdgeLabel() ) {
                cnt++;
                System.out.print("isSystemRelationTypeId: ");
                System.out.println(graph.getIDManager().isSystemRelationTypeId(relation.typeId));

                System.out.print("isEdgeLabelId: ");
                System.out.println(graph.getIDManager().isEdgeLabelId(relation.typeId));

                System.out.print("type isEdgeLabel: ");
                System.out.println(type.isEdgeLabel());

                System.out.print("relationId isSystemRelationTypeId: ");
                System.out.println(graph.getIDManager().isSystemRelationTypeId(relation.relationId));
                System.out.println(entry.getValue().toString());
            }
        }
        System.out.println("Edge count: " + cnt);

I made a test by making a small graph-- two vertexes and two edges.


But I just get the count of the edge is one, expecting two. Is there any problem? Please help....This problem bugs me. Thanks~~~
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