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High Availability (BETA)

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@birme birme released this 11 Jun 11:50
· 383 commits to master since this release
v2.22.0
fa1b8fa

As the engine is not a stateless microservice accomplish high availablity and redundancy is not a trivial task, and requires a shared cache cluster (also redundant) to store current state.

High-level drawing of High Availability

A beta-version of high availability support is available in the Channel Engine and it uses Redis as the shared storage. This allows you to run a replicaset behind a round-robin load balancer as examplified in the drawing above. To enable high-availability initiate the engine with the URL to the Redis cache.

const engineOptions = {
  heartbeat: '/',
  averageSegmentDuration: 2000,
  channelManager: refChannelManager,
  defaultSlateUri: "https://maitv-vod.lab.eyevinn.technology/slate-consuo.mp4/master.m3u8",
  slateRepetitions: 10,
  redisUrl: "redis://127.0.0.1",
};

const engine = new ChannelEngine(refAssetManager, engineOptions);
engine.start();
engine.listen(process.env.port || 8000);

Note that this feature is currently in beta which means that it is close to production-ready but has not been run in production yet. We appreciate all efforts to try this out and provide feedback.

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