A stream-processing service for monitoring distributed clusters.

Inspired by Riemann, dmon will use Python coroutines as its stream-processing language. An example configuration will look something like:

stream = when(lambda event: event['state'] == "warning",
              email("me@mycompany.com"))

I'm currently experimenting with using eventlet as the underlying IO loop. The goal for this project is to experiment with integrating into OpenStack for light-weight cluster monitoring.

For development purposes I've implemented the most rudimentary protocol possible: JSON. I plan to eventually add Protocol Buffers (and maybe Thrift) support in the future.

To run the unit tests:

$ python setup.py test

• protocol
  • protobuf
  • thrift ?
  • jsonschema ?
• stream processing
• event storage / querying
• web socket support