Netflix Stratum Media Processing: Automated Container Right-Sizing

By Violetta Pidvolotska and Naveen MareddyStratum is Netflix’s internal serverless media processing platform, shaped by over a decade of experience developing large-scale distributed systems. It powers a wide range of media workloads — including encoding, packaging, inspection, and quality scoring — behind playback, advertising, studio workflows, AI embeddings, and more.Engineers develop Stratum functions by packaging application code and OS dependencies into OCI images. Stratum then schedules these containers as batch jobs on Netflix’s Titus compute platform, with upstream services triggering function executions.Every day, Stratum manages hundreds…

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