Why is Neo4j(Client) running out of memory? - neo4j

Question

I am creating 1 million nodes. I had to create these in smaller batches to avoid running out of memory. Now I am trying to delete the existing nodes but again I am getting an out of memory exception. I should really be able to delete this level of data without running out of memory and without having to code around this limit. Am I doing something wrong here?
I know I could increase the Java heap size, but I feel that would just be deferring the real problem to a later point in time when I have much more data to create/delete.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Neo4jClient;
namespace Neo4JWontDelete
{
class Program
{
private const int MaximumNumberOfWordsToCreate = 1000*1000;
private const int BatchSize = 5 * 1000;
static void Main(string[] args)
{
var client = new GraphClient(new Uri("http://neo4j:Xxxxxx1#localhost:7474/db/data"));
client.Connect();
Console.WriteLine("Starting with a clean database");
DeleteAllObjects(client);
Console.WriteLine("Creating data");
int currentWordNumber = 1;
while (currentWordNumber < MaximumNumberOfWordsToCreate)
{
int numberOfWordsToCreate = MaximumNumberOfWordsToCreate - currentWordNumber;
if (numberOfWordsToCreate > BatchSize)
numberOfWordsToCreate = BatchSize;
var words = Enumerable.Range(currentWordNumber, BatchSize).Select(x => new Word {Value = x.ToString()});
client.Cypher
.Create("(w:Word {words})")
.WithParam("words", words)
.ExecuteWithoutResults();
currentWordNumber += numberOfWordsToCreate;
Console.WriteLine(currentWordNumber - 1);
}
Console.WriteLine("Deleting data");
DeleteAllObjects(client);
}
private static void DeleteAllObjects(GraphClient client)
{
client.Cypher
.Match("(w :Word)")
.Delete("w")
.ExecuteWithoutResults();
}
}
class Word
{
public string Value { get; set; }
}
}

Answer 1

This problem only seems to exist in the community edition. The 30 day trial of the enterprise edition works fine.

Answer 2

Do your words have relationships?
Otherwise you can batch it simply too.
MATCH (w:Word) with w limit 500000 delete w
With relationships you'd do
MATCH (w:Word) with w limit 50000 optional match (w)-[r]-() delete w,r