The Stream Distribution & Routing (SDR) consists of two components: Workload Distribution Agent and Workload Routing Agent
Workload Distribution Agent
It receives stream events initiated by Video Storage Toolkit (VST)
It compiles the workloads and evenly distributes them to underlying microservices by invoking their webhooks
It writes the distribution mapping into a cache
Workload Routing Agent
It intercepts a HTTP or GPRC call from an upstream caller and extract the stream identifier from the request header
It looks up the distribution mapping with the stream identifier
it routes requests to the specific processing replica of a microservice
You can find more information here.
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