2. Zerograph is an alternative server
container for one or more Neo4j graph
databases that uses ZeroMQ for fast and
reliable communication and comes
bundled with a Python client.

3. Basic Architecture
Python client
application
Java server
(embedded)
ZeroMQ
transport
JSON
YAML

4. Multi-tenancy
PATCH Graph {"host":"localhost","port":47471}
!Graph {"host":"localhost","port":47471}
from zerograph import *
graph = Graph.open(port=47471)
Graph.drop(port=47471)

5. Working with Entities
a, b = graph.create(Node(name="Alice"),
Node(name="Bob"))
ab, = graph.create(Path(a, "KNOWS", b))
a.labels.add("Person")
a.properties["age"] = 33
a.push()
A B
A B
create
delete
push
pull
ab.properties["since"] = 1999
ab.push()

6. Performance (rough)
● Desktop Linux PC (quad-core AMD
Phenom™ II X4 965 with 4GB RAM)
● Fast YAML loader (C, not Python)
Creation test: ~0.25s/1000 nodes
~0.50s/1000 relationships

7. Resilience
ZeroMQ
Sockets

8. Can I use it?
● Built in a limited environment
● Not mature
● Not (yet) a production replacement

9. Can I use it?
● Built in a limited environment
● Not mature
● Not (yet) a production replacement
● Test and give feedback
● Try it, build on it, improve it
● Other languages
● Other operating systems

10. nigelsmall.com/zerograph
@neonige