Get Strymon

You can download any release of Strymon from the release archive or fetch the most recent version directly using git:

$ git clone
Cloning into 'strymon-core'...
$ cd strymon-core

You will need a recent version of the Rust compiler and the Cargo package manager to build the Strymon source code.

$ cargo build --all --release

This step will take a while, as this command builds everything: The Strymon core run-time, the provided example programs, and essential dependencies such as Timely and Differential Dataflow.

Note: The easiest way to install the nightly version of the Rust compiler and Cargo is using As of Stymon Core version 0.2, we support Rust 1.22 or newer. We recommend you use the most recent stable version of the Rust compiler.

Starting a local Strymon cluster

Once you downloaded and built strymon-core, run the following commands in the project folder to spawn a local cluster:

Start a coordinator and the executors listed in conf/executors:

$ ./bin/

Ensure that the system is running by inspecting the system catalog:

$ ./bin/strymon status
Coordinator: localhost:9189
 Executor 0: host="localhost"

For more information about these command-line utilities, please consult their documentation.

Note: on macOS you may be presented with a prompt from the firewall, once when starting the cluster and again when running the provided example. This is because the built-in firewall blocks incoming network connections and you can safely proceed by selecting “Allow”.

Next step: Try the example programs

The Strymon Core contains a very simple two-stage example of a network topology generator and a connected components module. You can read more about them and how to try it out in the next chapter:

Click here to continue the tutorial

Stopping the cluster

To stop the coordinator and the executor running on the local machine, execute the following command:

$ ./bin/