RoadRunner 2.4.0

Happy to announce a major overhaul to RoadRunner, an open-source PHP application server written in Go that our research and development team at Spiral Scout works on. Release 2.4.0 is a massive update that includes the following capabilities that were requested by the open-source engineering community. We will try to outline all the changes since the last time we gave an update.

Queue plugin

RoadRunner can now manage your queues (previously this was only available in the Spiral Framework)
We included worker level load-balancing (planned fair scheduling) to make sure that no jobs would get stuck
We added support for RabbitMQ, Amazon SQS, Beanstalk, Memory, and Local drivers
Memory driver will not persist task data but can be used to run background tasks
Local (BoltDB) queue plugin guarantees at-least-once execution and can be used without any external brokers for smaller projects

Benchmarks (5950x machine, dummy payloads):

Memory – 300K RPS (approx)
RabbitMQ – 100K RPS (approx)
Beanstalk – 10K RPS (approx)
SQS – 1-2K RPS (approx)
Local – 50 RPS (not K, just 50)

The plugin declares the queue pipelines on the fly, manages the re-connects, and ensures the system’s durability as a whole. Other functionality includes protobuf protocol, custom message headers, data serialization, delays, and retry functionality.

Documentation: https://roadrunner.dev/docs/plugins-jobs/2.x/en

KeyValue plugin

In earlier releases, we included a new standard plugin to work with Key-Value storage and cache. The plugin provides PSR-16 compatible interface and supports multiple drivers:

Redis (including Redis cluster)
Memcache
BoltDB (local storage)
Memory (could be shared across workers)

Documentation: https://roadrunner.dev/docs/plugins-kv/2.x/en

Temporal

You can now integrate with the Temporal workflow server SDK. Now you can run both tasks in a distributed and fault-tolerant fashion and create your own workflow definitions using async PHP SDK.

SDK: https://github.com/temporalio/sdk-php

Documentation: https://docs.temporal.io/docs/php/introduction

Roadmap

We have a number of updates coming to RoadRunner 2 including GRPC (previously we provided a separate server), LetsEncrypt and PubSub bus, plus much more.

You can find the link to the overall release here: https://github.com/spiral/roadrunner/releases/tag/v2.4.0