Strymon 0.2.0

This release comes with a redesigned publish-subscribe subsystem, overhauled documentation and testing, and other various bug fixes and improvements.

Notable changes

We have merged 23 pull requests since the last release. Some notable changes include:

• We introduced a new, slimmer client library for writing Strymon jobs. The new library also implements our completely redesigned publish-subscribe protocol, which preserves epoch atomicity and supports subscribing to multiple stream partitions at once. The design document for the new mechanism can be found on our website. PR #25, #30.
• The source code of all our library crates is now fully documented and enforces the #![deny(missing_docs)] lint. We now also host the API documentation for Strymon Core on our website. PR #26, #28, #37, #43, and #45.
• We've continued the modularization of strymon-core into smaller crates. See our navigating the source code document for a brief overview. PR #33.
• Incoming requests in strymon_communication can now have a custom associated type, allowing for stricter type checks at compile-time. PR #22.
• Strymon v0.2 is now based on Timely and Differential Dataflow v0.5. PR #35.

As always, you can get the latest version by cloning our GitHub repository or download a tarball from the release archive.

Strymon 0.1.1

This is a minor release, containing various bug fixes and some minor feature additions.

Notable changes

• Strymon now builds on Rust stable, starting with version 1.21. See PR #6, #20.
• Added a new subcommand, strymon terminate which kills the processes belonging to a running job. PR #3, #15.
• Job artifacts are now stored in a dedicated directory. PR #19.
• Various other bug and documentation fixes, as well as code and performance improvements. PR #1, #2, #14, #16, #18.

Contributors

The following people have contributed to this release of Strymon:

• Florian Gilcher
• Matthew Forshaw
• Moritz Hoffmann
• Sebastian Wicki

First release

This release contains

• Strymon's core publish-subscribe mechanism.
• A CLI tool to start and stop Strymon, submit jobs, and check the system's status.
• An example use-case which generates a datacenter network topology and simulates switch and link failures.

Known Issues

• ./bin/stop-strymon.sh will not stop any running jobs.
  You can terminate them manually using pkill -f timely_query