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Serverless Clusters

WarpStream Serverless clusters are entirely managed by WarpStream. In addition to the fully-managed control plane, which is used by all cluster types, the Agents for Serverless clusters run in WarpStream's environment, and use object storage in WarpStream's cloud account.
While Serverless cluster operations are similar to BYOC clusters, there are some known differences you should be aware of.

Dedicated Kafka Headers

If you are using a Serverless cluster, then the Kafka headers starting with “_ws” are reserved for WarpStream. Concretely this means that:
  • Produce requests containing records with at least one header starting with this prefix will be rejected.
  • Those headers are used for internal purposes only and will never be returned to users when records are fetched.
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