Simple and Fast Graph DB server

This project was awarded to wangq for $1111 USD.

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Project Budget
$250 - $1000 USD
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Project Description

* General

Bulid a server containing graph DB that can be accessed through WebAPI.

Based on current technologies: [url removed, login to view], Neo4J, Ruby, Python, Linux or others.

*The Data

Relations: One type of bi-direction relation.


200K nodes of Type A: Have 250 relations with other nodes in average. Contains list of data items. Each item has a few fields.

10M nodes of Type B: Have at least one relation with node of type A.


Input: Node of type A, and data query on the data fields.

Output: All the routes in length of 1 or 2, starts from the given node, ending in node with data item that fits the given data query.


Input: Node, and list of relations. Effects: If the node doesn't exist (or too old), add it and its relations to the DB.

Add/Edit/Delete Data Item to node.

First db load from files mechanism.


100 queries per second

2 updates, each with 250 relations per second.

2 data items updates per second



Installation on server.

Automatic installation scripts

Code of performance tests.

Backup solution.

Awarded to:

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