GraphKeeper - a simple, distributed RDF store in ZooKeeper
GraphKeeper is a simple, distributed RDF store in ZooKeeper. Read the design notes first to get an idea.
Dependencies and configuration
This software has been developed and tested under MacOS Lion. I'm using ZooKeeper 3.3.5 with Python bindings in an Python 2.7.1 environment. I have the following content in
conf/zoo.cfg in the ZooKeeper home dir:
tickTime=2000 initLimit=10 syncLimit=5 dataDir=tmp clientPort=2181
To launch GraphKeeper you have to initially
chmod 755 gk-launch.sh once and set the path to your ZooKeeper installation. Then you can
./gk-launch.sh to fire up ZooKeeper and after which you should see something like:
JMX enabled by default Using config: /Users/michael/Documents/dev/zookeeper-3.3.5/bin/../conf/zoo.cfg -n Starting zookeeper ... STARTED
Then you can try out GraphKeeper by running:
$ python gk.py test/dataset0.nt Set up of GraphKeeper ...
To shut down GraphKeeper you do
chmod 755 gk-shutdown.sh once and then you can
- Payload codec
- Named graph to znode look-up table
- TriG parsing
The software provided here is in the Public Domain.