Drivers ======= This page list existing driver implementations and explains how to make your own driver. Mofka ----- `Mofka `_ is an event-driven service for HPC based on the `Mochi `_ suite of technologies. It relies on RPC and RDMA using the Mercury library and on user-level threads thanks to the Argobots library. To use Mofka as a backend, simply follow the README in Mofka's repository. Thanks to its use of high-performance networks, Mofka is particularly well suited for use in HPC applications. Octopus ------- `Octopus `_ is a driver allowing the use of the Diaspora Stream API on top of `Apache Kafka `_ or any engine compatible with `librdkafka `_ (e.g. `Redpanda `_). It can be used with a local deployment of such engines, or with one deployed on Amazon MSK, using IAM access control. To use Octopus as a backend, simply follow the README in Octopus' repository. Files ----- The "files" driver is built into the Diaspora Stream API library and is used throughout this documentation. This driver organizes topics and partitions as files in a parallel file system, with each topic represented by a directory, and each partition represented by a subdirectory containing three files: a data file, a metadata file, and an index file. This backend is not meant for performance. We recommend users use it for testing before switching to an actual event-driven backend. Writing your own ---------------- To write your own driver, navigate to `this Github project `_. It is a template project, so you can click on "Use this template" and follow the instructions in the README to develop your driver. We recommend your project name be a single word, as initialization scripts will rename files, namespaces, etc. after the project is created.